Tired shade of green, on the day (5)
I believe the answer is:
jaded
'tired' is the definition.
('jade' can be a synonym of 'tire')
'shade of green on the day' is the wordplay.
'shade of green' becomes 'jade' (I've seen this before**).
'on' means one lot of letters go next to another.
'the day' becomes 'd'.
'jade'+'d'='JADED'
(Other definitions for jaded that I've seen before include "Bored, having had too much of something" , "Spent" , "Tired and bored, lacking zest" , "Exhausted - satiated" , "Weary from excess" .)