Crossword Genius

Invade on account of race (7)

Ross

I believe the answer is:

overrun

'invade' is the definition.
(overrunning is a kind of invading)

'on account of race' is the wordplay.
'on account of' becomes 'over'.
'race' becomes 'run' (run is a kind of race**).
'over'+'run'='OVERRUN'

(Other definitions for overrun that I've seen before include "Exceed time allowed - or conquer territory." , "Last longer than scheduled" , "Move too fast" , "last longer than planned" , "Stretch too far" .)

I've seen this clue in The Telegraph.
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