Perhaps bitter and against insincere talk around football team (10)
I believe the answer is:
intoxicant
'perhaps bitter' is the definition.
(I know that bitter is a type of pale ale)
'against insincere talk around football team' is the wordplay.
'against' is a charade indicator (letters next to each other).
'insincere talk' becomes 'cant' (I've seen this in another clue).
'around football' becomes 'into' (I can't justify this - if you can you should believe this answer much more).
'team' becomes 'XI' (a football team, from Roman numerals for ii).
'into'+'xi'='intoxi'
'cant' put after 'intoxi' is 'INTOXICANT'.
'and' is the link.
Can you help me to learn more?
(Other definitions for intoxicant that I've seen before include "eg Alcoholic drink" , "Something like alcohol" .)