Abuse as I get stuck into deal (6)
I believe the answer is:
tirade
'abuse' is the definition.
(verbal abuse)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tirade that I've seen before include "Fulmination" , "lecture" , "A tongue-lashing" , "Flow of invective" , "Long speech of angry criticism" .)