Non-fire? That’s wrong (7)
I believe the answer is:
inferno
'non-fire? that's wrong' is the definition.
I can't tell whether this defines the answer.
'non-fire? that's wrong' is the wordplay.
'that's wrong' is an anagram indicator.
'non'+'fire'='nonfire'
'nonfire' anagrammed gives 'INFERNO'.
(Other definitions for inferno that I've seen before include "A raging fire as in hell - ask Dante" , "Terrible fire" , "(Hellish) blaze" , "Intense and uncontrolled fire" , "Dante's work" .)