Would you credit a sailor catching one in a boat? (4)
I believe the answer is:
crab
'one in a boat?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'would you credit a sailor' is the wordplay.
I cannot really understand how this works, but
'credit' could be 'cr' (abbreviation) and 'cr' is found within the answer.
'a' is found in the answer.
A single letter 'b' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'catching' acts as a link.
Can you help me to learn more?
(Other definitions for crab that I've seen before include "Clawed crustacean" , "Edible crustacean" , "Fiddler, perhaps" , "accidentally caught in a row?" , "Clawed shellfish" .)