Sport needing reform Chay can start to globalise (8)
I believe the answer is:
yachting
'sport' is the definition.
(I know that yachting is a type of water sport)
'reform chay can start to globalise' is the wordplay.
'reform' indicates an anagram (letters in a new form).
'can' becomes 'tin' (both are metal containers).
'start to' suggests taking the first letters.
The first letter of 'globalise' is 'g'.
'chay' anagrammed gives 'yach'.
'yach'+'tin'+'g'='YACHTING'
'needing' acts as a link.
(Other definitions for yachting that I've seen before include "Sailing for pleasure" , "Sailing (on a cruise or in races)" , "Water sport" , "Boating on pleasure craft" , "Itchy nag (anag.)" .)