A Bard with one level of Life Cleric can make for a somewhat decent healer, thanks to the bonus to healing spells, combined with 1st level cleric spells, and Bard access to other healing spells. And if you go Valor Bard, you can be a passable archer if you're wanting ranged weapon damage. Plus you'd have other Bard spells for utility. That'd start as Cleric1/Bard1, and then go all Bard from there. You'd be versatile, but not necessarily great at either healing or ranged damage. Not really an optimal choice, but you wouldn't be too underpowered, and a traveling troubador priest could be a fun character concept.
Or if you're looking for something with higher damage potential, and want to focus more on archery and less on healing and spells, a Hunter Ranger is a good option. The Ranger does get access to some limited healing spells, and with Archery fighting style at 2nd level, Colossus Slayer at 3rd level, then the Sharpshooter feat at 4th level, and Extra Attack at 5th level, you can lay down the hurt at long ranges with a bow. Plus you wouldn't need to multiclass, and could start as a Ranger2. (Bonus points if your DM will let you use the Revised Ranger, which is noticeably improved over the standard Ranger:
https://media.wizards.com/2016/dnd/downloads/UA_RevisedRanger.pdf )
If you want to focus more on spellcasting, a Divine Soul Sorcerer can take spells from both the Cleric and Sorcerer spell list, which allows you to not only grab some Cleric healing spells, but also get Sorcerer's ranged attack cantrips and higher level ranged spell attack and AOE spells. This is a good way to get a blaster/ranged attack spellcaster with a bit of healing. And again, you wouldn't need to multiclass. You could start out as Sorcerer2.
A similar option for a versatile spellcaster is to be a Light Cleric. Your ranged damage cantrips are a bit more limited to stuff like Sacred Flame and Toll the Dead, but you'd have more spells than a Sorcerer, full access to Cleric daily spell choices, and your domain spells get you some useful ranged attack and AOE spells. And again, you wouldn't need to multiclass. You could start out as Cleric2.
Unfortunately, none of the Gnomes are optimal races for any of these ideas. They get a large bonus to INT, and a smaller bonus to DEX or CON, depending on type. So if going Bard/Cleric or Ranger, I'd take Forest Gnome for a small boost to DEX. If going Divine Soul Sorcerer or Light Cleric, I'd take Rock Gnome for a small boost to CON.
The other downside to being a Gnome is that if you're going for an Archer (like the Valor Bard or Hunter Ranger), you can't use a Longbow, so you're missing out on a bit of damage. Gnomes are Small, and Longbows are Heavy weapons, so Gnomes get Disadvantage on attack rolls with them. You'll have to stick to Shortbows. Not a huge loss (1 point of damage on average), but it's not nothing.