English knight draws empty conclusions (4)
I believe the answer is:
ends
'conclusions' is the definition.
(end is a kind of conclusion)
'english knight draws empty' is the wordplay.
'english' becomes 'e' (abbreviation).
'knight' becomes 'N' (chess abbreviation).
'empty' says to hollow out the word (remove centre letters).
'draws' with its middle removed is 'ds'.
'e'+'n'+'ds'='ENDS'
(Other definitions for ends that I've seen before include "See 8" , "Terminates, concludes" , "'Goals, objectives (4)'" , "Some bowling" , "ambitions" .)