Attacks a boor holding a cricket trophy (6,3)
I believe the answer is:
lashes out
'attacks a' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'boor holding a cricket trophy' is the wordplay.
'boor' becomes 'lout' (I've seen this in another clue).
'holding' means one lot of letters goes inside another.
'a cricket trophy' becomes 'ashes' (I've seen this before).
'lout' enclosing 'ashes' is 'LASHES OUT'.
Can you help me to learn more?
(Other definitions for lashes out that I've seen before include "Hits wildly" , "removing part of eye?" .)