Destroy loud pursuit (4)
I believe the answer is:
ludo
'pursuit' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'destroy loud' is the wordplay.
'destroy' indicates an anagram (I've seen this in other clues).
'loud' with letters rearranged gives 'LUDO'.
Can you help me to learn more?
(Other definitions for ludo that I've seen before include "Type of board game" , "Children's board game" , "race for four tokens" , "Traditional board game" , "Simple board game, involving dice" .)