Press to take one game for review (4)
I believe the answer is:
urge
'press' is the definition.
(synonyms)
'to take one game for review' is the wordplay.
'to take one' becomes 'eg' (e.g. can mean for example or to take one example).
'game' becomes 'ru' (rugby union).
'for review' says the letters should be written in reverse.
'eg'+'ru'='egru'
'egru' in reverse letter order is 'URGE'.
(Other definitions for urge that I've seen before include "Implore" , "Press; drive" , "Incite to action" , "Appeal to" , "Encourage (to do something)" .)