Love hunt, here sabotaged at the last minute (8,4)
I believe the answer is:
eleventh hour
'at the last minute' is the definition.
(I've seen this before)
'love hunt here sabotaged' is the wordplay.
'sabotaged' is an anagram indicator.
'love'+'hunt'+'here'='lovehunthere'
'lovehunthere' with letters rearranged gives 'ELEVENTH-HOUR'.
(Other definitions for eleventh hour that I've seen before include "a sixty-minute period" , "Latest possible time" , "Last-minute" , "Very last moment" , "well before noon" .)