Support, being overdrawn after holiday? (6)
I believe the answer is:
tripod
'support' is the definition.
(I know that tripod is a type of rack)
'overdrawn after holiday?' is the wordplay.
'overdrawn' becomes 'od' (abbreviation for overdrawn).
'after' says to put letters next to each other.
'holiday?' becomes 'trip' (I've seen this in another clue).
'od' after 'trip' is 'TRIPOD'.
'being' is the link.
(Other definitions for tripod that I've seen before include "one appears to have three legs!" , "oral test at school" , "Something on three legs" , "Drop it (anag)" , "Torpid (anag.)" .)