Sporting lady paid out solidly (8)

I believe the answer is:

strongly

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'solidly' is the definition.
Both the answer and definition are adverbs. Perhaps they are linked in a way I don't understand?

I don't understand the remainder of the clue.

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(Other definitions for strongly that I've seen before include "Firmly or with great power" , "With power or strength" , "In a powerful manner" , "In a forceful manner" , "hard" .)

I've seen this clue in the Irish Times (Crosaire) and The Irish Times.

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