Drone, an English kind (6)
I believe the answer is:
humane
'kind' is the definition.
('humane' can be similar in meaning to 'kind')
'drone an english' is the wordplay.
'drone' becomes 'hum' (I've seen this before).
'english' becomes 'e' (abbreviation).
'hum'+'an'+'e'='HUMANE'
(Other definitions for humane that I've seen before include "Kind and merciful" , "Kind and civilised" , "Kindly or merciful" , "Kind and liberal" , "Merciful and considerate" .)