Educational qualification in angling? (6)

I believe the answer is:

degree

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

I don't understand how the remainder of the clue works.

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(Other definitions for degree that I've seen before include "Measure for angles and temperature" , "Comparative amount" , "Fraction of a minute" , "Extent - academic achievement" , "The measure of a university award?" .)

I've seen this clue in The Irish Independent.

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