Turn Tam out in a fit of rage (7)
I believe the answer is:
tantrum
'a fit of rage' is the definition.
(I've seen this before)
'turn tam out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'turn'+'tam'='turntam'
'turntam' is an anagram of 'TANTRUM'.
'in' is the link.
(Other definitions for tantrum that I've seen before include "Pet, temper" , "Fit of ill-temper" , "Display of bad temper" , "Hissy fit" , "Spoilt brat's fit" .)