Yes-man in trouble about time for remission (7)
I believe the answer is:
amnesty
'remission' is the definition.
(thesaurus)
'yes-man in trouble about time' is the wordplay.
'yes man' becomes 'yesman' ('yes-man' can be a synonym of 'yes man').
'in trouble' indicates anagramming the letters.
'about' means one lot of letters goes inside another.
'time' becomes 't'.
'yesman' with letters rearranged gives 'amnesy'.
'amnesy' going around 't' is 'AMNESTY'.
'for' acts as a link.
(Other definitions for amnesty that I've seen before include "A general pardon for offences against the state" , "Legal pardon" , "General pardon - international charity" , "Organisation concerned with people unjustly imprisoned" , "act of forgiveness" .)