Criticise Greek god (3)
I believe the answer is:
pan
This clue is a double definition.
'criticise' is the first definition.
(informal term meaning to criticise heavily)
'greek god' is the second definition.
(Pan is an example)
(Other definitions for pan that I've seen before include "all in many words, initially" , "boil vegetables in this" , "Skillet" , "Shallow dish" , "Toilet bowl" .)