Metal spike with a bent point (5)

I believe the answer is:

piton

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'metal spike' is the definition.
'piton' can be an answer for 'spike' (piton is a kind of spike). I'm not certain of the 'metal' bit.

'a bent point' is the wordplay.
'a bent' is an anagram indicator.
'point' anagrammed gives 'PITON'.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for piton that I've seen before include "Mountaineering tool" , "It helps the climber" , "What mountaineer requires" , "Spiked climbing aid" , "Climber's spike" .)

I've seen this clue in the Evening Standard.

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