Activity that involves putting sensible car around trendy island (9,4)
I believe the answer is:
miniature golf
'activity' is the definition.
(miniature golf is a kind of activity)
'involves putting sensible car around trendy island' is the wordplay.
I cannot really see how this works, but
'car' could be 'golf' (I've seen this before) and 'golf' is present in the answer.
'trendy' could be 'in' ('in' can mean fashionable) and 'in' is present in the answer.
'island' could be 'i' (geographical abbreviation) and 'i' is located in the answer.
'sensible' could be 'mature' (I've seen this before) and 'mature' is found within the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
'that' acts as a link.
Can you help me to learn more?
(Other definitions for miniature golf that I've seen before include "Putting game" , "Game with holes" , "Game played on a small course with many obstacles" .)