Belonging to Tory team, class thinking of no one else (13)
I believe the answer is:
inconsiderate
'thinking of no one else' is the definition.
(not considering others)
'belonging to tory team class' is the wordplay.
'belonging to' becomes 'in' (I've seen this in other clues).
'tory' becomes 'con' (abbreviation for conservative).
'team' becomes 'side' (both can mean a sports team).
'class' becomes 'rate' (class can mean to rank or rate).
'in'+'con'+'side'+'rate'='INCONSIDERATE'
(Other definitions for inconsiderate that I've seen before include "showing no regard for others" , "uncharitable" , "Unthinking" , "Thoughtless of others" , "Without regard for the feelings of others" .)