The net figure? (3)

I believe the answer is:

ten

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'figure?' is the definition.
(ten is a number)

'the net' is the wordplay.
'net' can be anagrammed to 'TEN'.
However, I'm not clear how this is indicated.

Can you help me to learn more?

(Other definitions for ten that I've seen before include "No of sides of a decagon" , "Base of decimal system" , "PM's address, Downing St" , "Dudley Moore/Bo Derek film" , "Figure" .)

I've seen this clue in the Evening Standard.

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