Sharp implements are almost unnecessary (7)
I believe the answer is:
needles
'sharp implements' is the definition.
'needles' can be an answer for 'implements' (I have seen 'Pointed implements ' mean 'needles' so perhaps 'implements' could also mean 'needles'). I am not certain of the 'sharp' bit.
'almost unnecessary' is the wordplay.
'almost' means to remove the last letter (almost the whole word is kept).
'unnecessary' becomes 'needless' (similar in meaning).
'needless' with its final letter taken off is 'NEEDLES'.
'are' is the link.
Can you help me to learn more?
(Other definitions for needles that I've seen before include "Sewing aids" , "landmark" , "Conifer leaves" , "Teases or provokes with knitting implements" , "Pine leaves" .)