Shilton catches Maradona's first half cutback, revealing limitation (9)

I believe the answer is:

parameter

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

I cannot understand how the rest of the clue works.

(Other definitions for parameter that I've seen before include "Limitation" , "Limiting factor" , "One of a set of factors as conditions for operation of a system" , "Variable amount" , "Quantifiable characteristic of a system" .)

I've seen this clue in The Independent.

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