There should be lots to buy here

I believe the answer is:

sale

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'there should be lots to buy here' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

This is the entire clue.

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(Other definitions for sale that I've seen before include "Cut-price offer" , "See 12 Down" , "Offer period" , "Period of reduced prices" , "Period of lower prices" .)

I've seen this clue in The Irish Independent.

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