Easily had (5)
I believe the answer is:
naive
'easily had' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for naive that I've seen before include "Unaffected; credulous" , "Credulous, unworldly" , "Too trusting and inexperienced" , "Ingenuous and gullible" , "Inexperienced or gullible" .)