About to get equal chance for revenge (7)
I believe the answer is:
rematch
'chance for revenge' is the definition.
The definition suggests a singular noun which matches the answer.
'about to get equal' is the wordplay.
'about to get' becomes 're' (I've seen this in other clues).
'equal' becomes 'match' (synonyms).
're'+'match'='REMATCH'
Can you help me to learn more?
(Other definitions for rematch that I've seen before include "new bout" , "Later encounter" , "Return game" , "Return fixture" , "Another game" .)