Moisten, as a turkey (5)
I believe the answer is:
baste
'moisten as a turkey' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for baste that I've seen before include "put on fat" , "Moisten while cooking" , "strike" , "Moisten with gravy" , "Moisten with liquid fat while roasting" .)