For no good reason sacking frontman of the Family Stone, a Scottish rock group (7)
I believe the answer is:
needles
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for needles that I've seen before include "Isle of Wight feature - irritates" , "Slender points of a conifer" , "styluses" , "Where a lighthouse is" , "Isle of Wight chalk monoliths" .)