Inclined to be finished on time (6)
I believe the answer is:
tended
'inclined' is the definition.
('tend' can be a synonym of 'incline')
'be finished on time' is the wordplay.
'be finished' becomes 'ended' ('ended' can be similar in meaning to 'finished').
'on' says to put letters next to each other.
'time' becomes 't'.
'ended' after 't' is 'TENDED'.
'to' acts as a link.
(Other definitions for tended that I've seen before include "Had leaning toward, or looke after" , "Nursed" , "Was apt" , "Cared for or looked after" , "Inclined or leaned towards" .)