Trouble-maker joins fliers, with time to create damage (10)
I believe the answer is:
impairment
'damage' is the definition.
('impairment' can be a synonym of 'damage')
'trouble-maker joins fliers with time' is the wordplay.
'trouble-maker' becomes 'imp'.
'joins' says to put letters next to each other.
'fliers' becomes 'airmen' ('airman' can be a synonym of 'flier'**).
'with' is a charade indicator (letters next to each other).
'time' becomes 't'.
'imp'+'airmen'+'t'='IMPAIRMENT'
'to create' acts as a link.
(Other definitions for impairment that I've seen before include "Disability" , "Injury" , "Weakening, damage" .)