Bits of stone troubling the lions (8)

I believe the answer is:

neoliths

'bits of stone' is the definition.
(prehistoric stone implements)

'troubling the lions' is the wordplay.
'troubling' indicates anagramming the letters (letters damaged or in trouble).
'the'+'lions'='thelions'
'thelions' with letters rearranged gives 'NEOLITHS'.

I've seen this clue in The Guardian.

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