Bomb thrown by worker angered in riot (4,7)
I believe the answer is:
hand grenade
'bomb' is the definition.
(I know that hand grenade is a type of grenade)
'thrown by worker angered in riot' is the wordplay.
I cannot quite understand how this works, but
'worker' could be 'hand' (hand is a kind of worker) and 'hand' is present in the answer.
an anagram of 'angered' is 'grenade' which is within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for hand grenade that I've seen before include "Manually launched explosive device" , "Thrown weapon" , "pineapple" , "Tree with edible nuts" , "Small explosive device for throwing" .)