Crossword Genius

One-man club (4)

Ross

I believe the answer is:

iron

'club' is the definition.
(iron is a kind of club)

'one-man' is the wordplay.
'one' becomes 'i' (Roman numeral).
'man' becomes 'ron' (I've seen this before**).
'i'+'ron'='IRON'

(Other definitions for iron that I've seen before include "Main element in steel" , "Revolver" , "Main component of steel" , "Very robust" , "Metal (that may be wrought)" .)

I've seen this clue in the Evening Standard.
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