Hob, say, priest needed for cooking (6)
I believe the answer is:
sprite
'hob say' is the definition.
(hob is a kind of sprite)
'priest needed for cooking' is the wordplay.
'needed for cooking' is an anagram indicator.
'priest' with letters rearranged gives 'SPRITE'.
(Other definitions for sprite that I've seen before include "Goblin, elf or imp" , "Supernatural being" , "Dainty type" , "Puck, say" , "Brownie" .)