Artillery fire from charity worker? (5)
I believe the answer is:
salvo
'artillery fire' is the definition.
'salvo' can be an answer for 'fire' (salvo is a kind of fire). I am unsure of the 'artillery' bit.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for salvo that I've seen before include "Discharge of weapons in unison" , "Barrage" , "concentrated fire" , "Simultaneous firing of weapons" , "Firing of guns as a salute" .)