Thought given to argument against team allowance (13)
I believe the answer is:
consideration
'thought' is the definition.
(I've seen this before)
'to argument against team allowance' is the wordplay.
'to argument' becomes 'con' (con is a kind of argument).
'against' is a charade indicator (letters next to each other).
'team' becomes 'side' (I've seen this before).
'allowance' becomes 'ration' (I've seen this before).
'con'+'side'+'ration'='CONSIDERATION'
'given' acts as a link.
(Other definitions for consideration that I've seen before include "examination" , "A motive" , "Reward; careful thought" , "factor to be borne in mind" , "Thoughtfulness - relevant factor" .)