Spoils game in seconds (5)

I believe the answer is:

ruins

'spoils' is the definition.
(ruining is a kind of spoiling)

'game in seconds' is the wordplay.
'game' becomes 'ru' (rugby union).
'seconds' becomes 's'.
'ru'+'in'+'s'='RUINS'

(Other definitions for ruins that I've seen before include "Remains to be seen" , "Derelict buildings" , "dilapidated buildings" , "Damaged remains (of building)" , "Damages beyond repair" .)

I've seen this clue in The Telegraph.

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