Happy to run around ship (7)
I believe the answer is:
blessed
'happy' is the definition.
(similar in meaning)
'run around ship' is the wordplay.
'run' becomes 'bleed' (synonyms).
'around' indicates putting letters inside.
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'bleed' going around 'ss' is 'BLESSED'.
'to' is the link.
(Other definitions for blessed that I've seen before include "Sanctified" , "Consecrated" , "darned" , "Bedless (anag.)" , "Endowed" .)