Ignore reduction (8)

I believe the answer is:

discount

I believe this is a double definition.

'ignore' is the first definition.
('discount' can be a synonym of 'ignore')

'reduction' is the second definition.
(discount is a kind of reduction)

(Other definitions for discount that I've seen before include "Reductions as for cash" , "Disbelieve" , "Do tunics attract reduction in price?" , "Ignore - price reduction" , "Reject as unimportant" .)

I've seen this clue in The Guardian and The Telegraph.

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