From Scandinavia once Spanish chap, cycling (5)
I believe the answer is:
norse
'from scandinavia' is the definition.
(I've seen this before)
'spanish chap cycling' is the wordplay.
'spanish' becomes 'es' (I can't explain this - if you can you should give a lot more credence to this answer).
'chap' becomes 'ron' (short for Ronald).
'cycling' says the letters should be written backwards (letters cycle back).
'es'+'ron'='esron'
'esron' reversed gives 'NORSE'.
'once' is the link.
Can you help me to learn more?
(Other definitions for norse that I've seen before include "Snore (anag)" , "Northern European" , "Relating to ancient Scandinavia" , "Family of Germanic languages spoken in Scandinavia and Iceland" , "These men were Vikings" .)