Overly trusting in French spa town, kicked back (5)

I believe the answer is:

naive

I'm a little stuck... Click here to teach me more about this clue!

'overly trusting' is the definition.
(I've seen this in another clue)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for naive that I've seen before include "Unaffectedly trusting" , "Inexperienced and guileless" , "Lacking judgment" , "Inexperienced, innocent" , "Too credulous or trusting" .)

I've seen this clue in The Everyman puzzle in The Observer.

Want a hint initially instead of a full solution? Install my app