Batsman's innings ended — accidentally fell (5,4)

I believe the answer is:

knock over

'accidentally fell' is the definition.
(to knock something over is to fell it by accident)

'batsman's innings ended' is the wordplay.
'batsman's innings' becomes 'knock' (cricket term).
'ended' becomes 'over' (synonyms).
'knock'+'over'='KNOCK OVER'

I've seen this clue in The Guardian.

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