When running helps at a fight (4,4,5)

I believe the answer is:

half past eight

'when' is the definition.
('when' refers to a time)

'running helps at a fight' is the wordplay.
'running' indicates an anagram.
'helps'+'at'+'a'+'fight'='helpsatafight'
'helpsatafight' is an anagram of 'HALF PAST EIGHT'.

I've seen this clue in The Guardian.

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