Gas oven I can sort out (12)
I believe the answer is:
conversation
'gas' is the definition.
(gas can mean talk or conversation)
'oven i can sort out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'oven'+'i'+'can'+'sort'='ovenicansort'
'ovenicansort' with letters rearranged gives 'CONVERSATION'.
(Other definitions for conversation that I've seen before include "discussion" , "Spoken exchange" , "22 between people" , "dialogue" , "Talk, chat" .)