Almost kiss sailor - that's delicious (6)
I believe the answer is:
nectar
'delicious' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'almost kiss sailor' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'kiss' becomes 'neck' (neck can informally mean to kiss).
'sailor' becomes 'tar' (slang term for a sailor).
'neck' with its last letter taken off is 'nec'.
'nec'+'tar'='NECTAR'
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for nectar that I've seen before include "Source of honey" , "Trance (anag)" , "Secretion collected by bees" , "Fluid secreted by flowers" , "Bees drink it" .)