Fragile small boat (6)
I believe the answer is:
tender
This clue is a double definition.
'fragile' is the first definition.
(I've seen this before)
'small boat' is the second definition.
(term for a small boat)
(Other definitions for tender that I've seen before include "Bid; kindly" , "Legal ..., official money" , "Romantic" , "Rented (anag.)" , "sensitive > carer > money" .)