A record height to climb (3)

I believe the answer is:

alp

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'height to climb' is the definition.
I can't tell whether this definition defines the answer.

'a record' is the wordplay.
'record' becomes 'LP' (abbreviation for long play record).
'a'+'lp'='ALP'

Can you help me to learn more?

(Other definitions for alp that I've seen before include "high point" , "Mountain pasture" , "Swiss mountain" , "High mountain" , "One of a European mountain range" .)

I've seen this clue in The Irish News and The Globe and Mail.

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