Cold rice: it is cooking in pan (9)
I believe the answer is:
criticise
'pan' is the definition.
('pan'->'criticize' is in my internal thesaurus and 'ize'->'ise')
'cold rice it is cooking' is the wordplay.
'cold' becomes 'c' (eg on taps).
'cooking' is an anagram indicator (cook can mean to falsify or distort).
'rice'+'it'+'is'='riceitis'
'riceitis' anagrammed gives 'riticise'.
'c'+'riticise'='CRITICISE'
'in' is the link.
(Other definitions for criticise that I've seen before include "Point out problems or mistakes" , "Find fault" , "knock" .)