Fragile ship, with space for a shop (12)
I believe the answer is:
delicatessen
'shop' is the definition.
(delicatessen is a kind of shop)
'fragile ship with space' is the wordplay.
'fragile' becomes 'delicate' (similar in meaning).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'with' says to put letters next to each other.
'space' becomes 'en' (in printing, a space as wide as a letter 'n').
'delicate'+'ss'+'en'='DELICATESSEN'
'for a' is the link.
(Other definitions for delicatessen that I've seen before include "food store?" , "Fine foods shop" , "Specialised food shop" , "Shop selling exotic prepared foods" , "Here one gets exotic foods" .)