Fix leg (3)

I believe the answer is:

I believe this is a double definition.

'fix' is the first definition.
(pinning is a kind of fixing)

'leg' is the second definition.
(pin is a kind of leg)

(Other definitions for pin that I've seen before include "Small object to fasten or attach" , "Skittle; fix" , "Number allocated for electronic transactions" , "leg" , "Needle" .)

I've seen this clue in The Times.

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