Significant if Little Women rejected a number of scores (6)

I believe the answer is:

eighty

'number of scores' is the definition.
(a score is twenty)

I can't explain the remainder of the clue.

(Other definitions for eighty that I've seen before include "Around the World in - Days (Verne)" , "Fourscore" , "Northern county (abbr.)" , "Number" , "4 score" .)

I've seen this clue in The Independent.

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