Relaxed on British craft (5)
I believe the answer is:
blimp
'craft' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'relaxed on british' is the wordplay.
'relaxed' becomes 'limp'.
'on' says to put letters next to each other.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'limp' after 'b' is 'BLIMP'.
Can you help me to learn more?
(Other definitions for blimp that I've seen before include "Small barrage balloon" , "Elderly pompous reactionary person" , "David Low's cartoon colonel - airship used for publicity" , "Large inflatable" , "Barrage balloon; backwoods Colonel" .)