Confide (7)
I believe the answer is:
entrust
'confide' is the definition.
(I know that confide can be written as entrust)
This is all the clue.
(Other definitions for entrust that I've seen before include "Put into someone's care" , "Confide" , "Place in someone's care for test run" , "Place in someone's 22 ac" , "Nutters (anag)" .)