Sporty group in Cathy's new boat (5,5)
I believe the answer is:
steam yacht
'boat' is the definition.
(I've seen this before)
'sporty group in cathy's new' is the wordplay.
I cannot quite understand how this works, but
'group' could be 'team' (group of people) and 'team' is found within the answer.
an anagram of 'cathy' is 'yacht' which is present in the answer.
A single letter 's' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for steam yacht that I've seen before include "vessel" , "Boat" .)