Player is in current contest (4,6)
I believe the answer is:
disc jockey
'player' is the definition.
(a DJ is someone who plays songs)
'is in current contest' is the wordplay.
'in' means one lot of letters goes inside another.
'current' becomes 'dc' (abbreviation for direct current).
'contest' becomes 'jockey' (jockey can mean to compete or contest).
'is' put inside 'dc' is 'disc'.
'disc'+'jockey'='DISC-JOCKEY'
(Other definitions for disc jockey that I've seen before include "Radio player of popular music" , "Radio presenter of pop records" , "Pop music presenter" .)