One climbing Snowdon circles in a weird manner (6,7)

I believe the answer is:

scenic railway

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'one climbing snowdon' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'circles in a weird manner' is the wordplay.
'weird' indicates anagramming the letters.
'manner' becomes 'way' (synonyms).
'circles'+'in'+'a'='circlesina'
'circlesina' is an anagram of 'scenicrail'.
'scenicrail'+'way'='SCENIC RAILWAY'

Can you help me to learn more?

(Other definitions for scenic railway that I've seen before include "Miniature train system with sights to see" , "Amusement park ride" , "Roller coaster" , "Train used as amusement activity" , "Amusement park attraction" .)

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