Fine fibre (8)
I believe the answer is:
filament
(Other definitions for filament that I've seen before include "Fine thread" , "Part of light" , "One may be incandescent" , "'Thin wire, in a bulb say (8)'" , "Slender thread - conducting wire" .)
I believe the answer is:
filament
(Other definitions for filament that I've seen before include "Fine thread" , "Part of light" , "One may be incandescent" , "'Thin wire, in a bulb say (8)'" , "Slender thread - conducting wire" .)