Top driver’s support to corporation (8)

I believe the answer is:

teetotum

'top' is the definition.
(type of spinning top)

'driver's support to corporation' is the wordplay.
'driver's support' becomes 'tee' (support for someone driving in golf).
'corporation' becomes 'tum' (I've seen this before).
'tee'+'to'+'tum'='TEETOTUM'

(Another definition for teetotum that I've seen is " Top spun as gamble".)

I've seen this clue in The Times.

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