Unpleasant sensation, those things coming to a point? (4,3,7)
I believe the answer is:
pins and needles
'unpleasant sensation' is the definition.
'pins and needles' can be an answer for 'sensation' (I've seen this before). I am not certain of the 'unpleasant' bit.
'those things coming to a point?' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is present in the answer.
'point?' could be 'needle' (I've seen this before) and 'needle' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pins and needles that I've seen before include "Articles in haberdashery store" , "Penetrating articles" , "discomfort?" , "sensation" , "Tingling" .)