Crossword Genius

One supporter left, say (3)

Ross

I believe the answer is:

leg

'one supporter' is the definition.

'left say' is the wordplay.
'left' becomes 'l' (common abbreviation).
'say' becomes 'eg'.
'l'+'eg'='LEG'

(Other definitions for leg that I've seen before include "Run < on" , "prop" , "Support; cricket side" , "Section of journey; limb" , "Lower limb" .)

I've seen this clue in the Evening Standard.
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