Socialite Ecclestone can go round in boat (9)
I believe the answer is:
catamaran
'boat' is the definition.
(catamaran is a kind of sailing vessel)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for catamaran that I've seen before include "Quarrelsome woman" , "Two-hulled boat" , "raft of logs" , "Vessel with twin hulls" , "Vessel with paralleltwin hulls" .)