Support a bit of leisure — after relaxation (5)
I believe the answer is:
easel
'support' is the definition.
(easel is a kind of support)
'a bit of leisure after relaxation' is the wordplay.
'a bit of' suggests taking the first letters.
'after' is a charade indicator (letters next to each other).
'relaxation' becomes 'ease' ('ease' can be a synonym of 'relaxation').
The initial letter of 'leisure' is 'l'.
'l' after 'ease' is 'EASEL'.
(Other definitions for easel that I've seen before include "Artist's canvas suppot" , "Standing supporter" , "Wooden frame for an artist" , "Framework to hold a canvas" , "artist's requisite" .)