One-eyed kind of craft? (6)
I believe the answer is:
needle
'one-eyed kind of craft?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I can't see?
This is all the clue.
Can you help me to learn more?
(Other definitions for needle that I've seen before include "Unnecessary" , "peak" , "Continually annoy" , "It's hard to find one in a haystack" , "Instrument to annoy" .)