Glues with gems that are possible bone-breakers (6,3,6)

I believe the answer is:

sticks and stones

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'bone-breakers' is the definition.
(I've seen this in another clue)

'glues with gems' is the wordplay.
'glues' becomes 'sticks' (I've seen this before).
'with' becomes 'and'.
'gems' becomes 'stones' (I've seen this before).
'sticks'+'and'+'stones'='STICKS AND STONES'

'that are possible' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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