Football club in sore distress! (6)
I believe the answer is:
soccer
'football' is the definition.
(I know that football can be written as soccer)
'club in sore distress' is the wordplay.
'club' becomes 'cc' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in' is an insertion indicator.
'distress' indicates an anagram.
'sore' is an anagram of 'soer'.
'cc' put within 'soer' is 'SOCCER'.
Can you help me to learn more?
(Other definitions for soccer that I've seen before include "Roy Keane's game" , "Informally, game" , "Association football" , "... players playing this (colloquially)" , "Football for Americans?" .)