Beating (7)

I think it could be either:

battery

bashing

'beating' is the definition.
(thesaurus)

This is the entire clue.

(Other definitions for battery that I've seen before include "One may be charged" , "associated with assault" , "Power source; artillery unit" , "Power cell" , "Means of storing electric current" .)

I've seen this clue in the Evening Standard and The Sun.

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