Support uprising carrying a weapon (5)
I believe the answer is:
taser
'weapon' is the definition.
(taser is a type of weapon)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for taser that I've seen before include "Stunning weapon" , "Paralysing device used by police" , "Shocking weapon" , "The weapon delivers a temporary paralysing electric shock" , "shocker" .)