Bachelor say beginning to gravitate into uncivilised envy (8)
I believe the answer is:
begrudge
'envy' is the definition.
('begrudge' can be a synonym of 'envy')
'bachelor say beginning to gravitate into uncivilised' is the wordplay.
'bachelor' becomes 'b' (abbreviation e.g. BA=Bachelor of Arts).
'say' becomes 'eg'.
'beginning to' suggests taking the first letters.
'into' indicates putting letters inside.
'uncivilised' becomes 'rude' ('rude' is associated in meaning with 'uncivilized').
The initial letter of 'gravitate' is 'g'.
'g' inserted inside 'rude' is 'rudge'.
'b'+'eg'+'rudge'='BEGRUDGE'
(Other definitions for begrudge that I've seen before include "Envy, resent having to give" , "Envy (someone) the enjoyment of" , "Envy the pleasure of" , "Show envy" , "Reluctantly give up" .)