It helps climbers fighting like Peter Pan? (9,4)

I believe the answer is:

grappling hook

I'm a little stuck... Click here to teach me more about this clue!

'it helps climbers fighting like peter' is the definition.
The definition suggests a singular noun which matches the answer.

'pan?' is the wordplay.
I cannot really understand how this works, but
'pan?' could be 'rap' (I've seen this in another clue) and 'rap' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Times.

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