It presumably has sharp bows (6)
I believe the answer is:
cutter
'it presumably has sharp bows' is the definition.
The definition suggests a singular noun which matches the answer.
'it presumably has sharp' is the wordplay.
I cannot really see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found in the answer.
'sharp' could be 'cute' (I've seen this in another clue) and 'cute' is present in the leftover letters.
A single letter 'r' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for cutter that I've seen before include "Boat; tailor" , "Small sailing ship or a knife" , "One working with Ruby possibly" , "Person docking" , "Small fast sailing ship - sounds sharp" .)