Rip has the right objective (4)
I believe the answer is:
rend
'rip' is the definition.
('rend' can be a synonym of 'rip')
'the right objective' is the wordplay.
'the right' becomes 'r' (common abbreviation).
'objective' becomes 'end' (I've seen this before).
'r'+'end'='REND'
'has' acts as a link.
(Other definitions for rend that I've seen before include "Tear to pieces" , "Nerd (anag.)" , "Tear violently" , "Tear apart, wrench" , "Tear savagely" .)