Crossword Genius

Must aid rebuilding of the arena (7)

Ross

I believe the answer is:

stadium

'the arena' is the definition.
('stadium' can be a synonym of 'arena')

'must aid rebuilding' is the wordplay.
'rebuilding' indicates anagramming the letters.
'must'+'aid'='mustaid'
'mustaid' is an anagram of 'STADIUM'.

'of' is the link.

(Other definitions for stadium that I've seen before include "Admit us (anag) - sports ground" , "A major sports ground" , "eg Yankee, Wembley" , "Venue for sporting events, concerts etc" , "Sports arena" .)

I've seen this clue in The Irish Independent.
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