Crossword Genius

Portly individual starts fight (5,3)

Ross

I believe the answer is:

round one

'starts fight' is the definition.
(first round of a boxing match)

'portly individual' is the wordplay.
'portly' becomes 'round' (portly means round or plump).
'individual' becomes 'one' (an individual is one person).
'round'+'one'='ROUND ONE'

(Other definitions for round one that I've seen before include "Start of fight" , "Where armour should be" , "start of contest" .)

I've seen this clue in The Guardian.
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