Dirk knocks over drunk in fight (8)
I believe the answer is:
stiletto
'dirk' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'knocks over drunk in fight' is the wordplay.
'knocks over' says the letters should be written in reverse (I've seen 'knocked over' mean this).
'drunk' becomes 'lit' (I've seen this in another clue).
'in' indicates putting letters inside.
'fight' becomes 'setto' (set-to is a kind of fight).
'lit' back-to-front is 'til'.
'til' placed into 'setto' is 'STILETTO'.
Can you help me to learn more?
(Other definitions for stiletto that I've seen before include "High-heeled shoe" , "Dagger; tapered heel" , "Small dagger with a tapered blade" , "Long thin knife" , "Thin dagger; heel" .)