Finds out length, perhaps, and cuts it? (8,2)

I believe the answer is:

measures up

I believe this clue is a double definition.

'finds out length perhaps' is the first definition.
(you might measure something to find its length)

'cuts it?' is the second definition.
(to cut it is to measure up or be good enough)

'and' is the link.

(Another definition for measures up that I've seen is " is adequate".)

I've seen this clue in The Times.

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