Kind of grouse flying round mid Kent (8)
I believe the answer is:
generous
'kind' is the definition.
('generous' can be similar in meaning to 'kind')
'grouse flying round mid kent' is the wordplay.
'flying' is an anagram indicator.
'round' is an insertion indicator.
'mid' means to look at the middle letters.
The middle letters of 'kent' are 'en'.
'grouse' is an anagram of 'gerous'.
'gerous' placed around 'en' is 'GENEROUS'.
'of' acts as a link.
(Other definitions for generous that I've seen before include "Free" , "Abundant" , "Kind towards others" , "Handsome" , "Benevolent, big-hearted" .)