It supports the basket finance directors (9)

I believe the answer is:

backboard

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'it supports the basket' is the definition.
The definition suggests a singular noun which matches the answer.

'finance directors' is the wordplay.
'finance' becomes 'back' (backing is a kind of financing).
'directors' becomes 'board' (board of directors).
'back'+'board'='BACKBOARD'

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(Other definitions for backboard that I've seen before include "form of support" , "panel" , "rigid support" .)

I've seen this clue in the Sydney Morning Herald.

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