Throttled vacuous separatist who used phone and little light (9)
I believe the answer is:
strangled
'throttled vacuous separatist who used phone and little' is the definition.
'strangled' can be an answer for 'throttled' (I've seen this before). I am unsure of the remainder of the definition.
'light' is the wordplay.
I cannot quite understand how this works, but
'light' could be 'led' (light-emitting diode) and 'led' is found within 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 strangled that I've seen before include "Throttled" , "Choked to death" , "Choked and killed" .)