Gathered gaol's wrecked in dispute (2,11)
I believe the answer is:
at loggerheads
'in dispute' is the definition.
(I've seen this before)
'gathered gaol's wrecked' is the wordplay.
'wrecked' is an anagram indicator.
'gathered'+'gaols'='gatheredgaols'
'gatheredgaols' anagrammed gives 'AT LOGGERHEADS'.
(Other definitions for at loggerheads that I've seen before include "In violent dispute" , "Quarrelling" , "In violent disagreement" , "Disagreeing with" , "In confrontation" .)