One girl's name for a stadium (5)

I believe the answer is:

arena

'for a stadium' is the definition.
(eg a sports arena)

'one girl's name' is the wordplay.
'one' becomes 'a' (a thing is one thing).
'girl's name' becomes 'rena' ().
'a'+'rena'='ARENA'

(Other definitions for arena that I've seen before include "An era (anag.)" , "Part of a stadium" , "Scene of open conflict" , "Where gladiatorial contests took place" , "Field of battle" .)

I've seen this clue in the Evening Standard.

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