Ellen MacArthur's craft headed up island on blowy night (8)
I believe the answer is:
yachting
'ellen macarthur's craft headed up island on blowy' is the definition.
I can't tell whether this definition defines the answer.
'night' is the wordplay.
I cannot really see how this works, but
an anagram of 'night' is 'hting' which 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?
(Other definitions for yachting that I've seen before include "Water sport" , "Itchy nag (anag.)" , "Boating sport" , "Sailing sport" , "Sailing for pleasure" .)