Beating this is the best (5)

I believe the answer is:

cream

This clue is a double definition.

'beating this' is the first definition.
(cream can be beaten)

'is the best' is the second definition.
(as in 'the cream of the crop')

(Other definitions for cream that I've seen before include "treat for cat?" , "Pick - fatty part of milk" , "The best part -of the crop" , "Very best; pale yellow" , "Butterfat part of milk" .)

I've seen this clue in The Telegraph.

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