Asleep at sea bringing delight (6)
I believe the answer is:
please
'delight' is the definition.
(I know that delight can be written as please)
'asleep at sea' is the wordplay.
'at sea' indicates anagramming the letters.
'asleep' anagrammed gives 'PLEASE'.
'bringing' is the link.
(Other definitions for please that I've seen before include "Make cheerful" , "Polite addition to a request" , "(Word used in) asking or accepting politely" , "cheer up" , "Beatles song (request to oblige?)" .)