See a chap angle for a water creature (8)
I believe the answer is:
crayfish
'a water creature' is the definition.
'crayfish' can be an answer for 'creature' (crayfish is a kind of creature). I am not sure about the 'a water' bit.
'see a chap angle for' is the wordplay.
'see' becomes 'C' (the word for the letter, according to Chambers).
'a chap' becomes 'ray' (man's name).
'angle for' becomes 'fish' (I can't justify this - if you can you should believe this answer much more).
'c'+'ray'+'fish'='CRAYFISH'
Can you help me to learn more?
(Other definitions for crayfish that I've seen before include "Lobster" , "Catch" , "Edible crustacean" , "Freshwater crustacean" , "seafood" .)