A record climb (3)
I believe the answer is:
alp
'climb' is the definition.
The answer and definition can be both natural objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'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 "Mountain pasture" , "Swiss mountain" , "high point" , "Mont Blanc, for example" , "High mountain" .)