Measure edge (4)

I believe the answer is:

inch

This clue is a double definition.

'measure' is the first definition.
(inch is a kind of measure)

'edge' is the second definition.
(I've seen this before)

(Other definitions for inch that I've seen before include "Rare bird follower" , "Islet (Scots); twenty-five.four mm" , "Creep, edge" , "Move by small amounts" , "Edge towards" .)

I've seen this clue in The Telegraph.

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