Squash item to consistently overlook or miss? (5)

I believe the answer is:

susie

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

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

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(Other definitions for susie that I've seen before include "Old song: ''If you knew . . . . . like I know . . . . .''" , "Girl" , "Woman" , "Girl's name" , "Wake Up Little - (Everly Brothers)" .)

I've seen this clue in The Times.

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