Game really odd beyond the burbs (5)
I believe the answer is:
rural
'beyond the burbs' is the definition.
(I've seen this in another clue)
'game really odd' is the wordplay.
'game' becomes 'ru' (rugby union).
'odd' means one should take alternating letters.
The alternate letters of 'really' are 'ral'.
'ru'+'ral'='RURAL'
(Other definitions for rural that I've seen before include "covering the country" , "Rustic" , "Connected with farming" , "Sort of dean" , "Old country fellow" .)