Ship at sea about to transfer fluid (6)
I believe the answer is:
siphon
'transfer fluid' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'ship at sea about' is the wordplay.
'at sea' indicates anagramming the letters.
'about' becomes 'on' (as in a book 'on' a certain topic).
'ship' anagrammed gives 'siph'.
'siph'+'on'='SIPHON'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for siphon that I've seen before include "Tube used to remove liquid from a higher to a lower level" , "Drawing device" , "A bottle that squirts, say soda water" , "Tube taking fluid from higher to lower point" , "Bottle from which a liquid is forced by pressure of gas" .)