Unpaid, a foreign RU team (7)
I believe the answer is:
amateur
'unpaid' is the definition.
('amateur' can be similar in meaning to 'unpaid')
'a foreign ru team' is the wordplay.
'foreign' indicates an anagram (foreign order of the letters).
'ru'+'team'='ruteam'
'ruteam' with letters rearranged gives 'mateur'.
'a'+'mateur'='AMATEUR'
(Other definitions for amateur that I've seen before include "Unprofessional" , "One is not professional" , "Not pro" , "Unpaid performer" , "inept player" .)