Wife getting fine frying pan (3)
I believe the answer is:
wok
'frying pan' is the definition.
(a pan for frying in)
'wife getting fine' is the wordplay.
'wife' becomes 'w'.
'getting' is a charade indicator (letters next to each other).
'fine' becomes 'ok' (synonyms).
'w'+'ok'='WOK'
(Other definitions for wok that I've seen before include "Asian cooking pan" , "Chinese bowl-shaped frying pan" , "Large Chinese frying pan" , "Pan used in Chinese cookery" , "Stir-fry pan" .)