Qualified as proficient in goal (7)
I believe the answer is:
enabled
'qualified' is the definition.
(I've seen this before)
'proficient in goal' is the wordplay.
'proficient' becomes 'able' (I've seen this before).
'in' is an insertion indicator.
'goal' becomes 'end' ('end' can be a synonym of 'goal').
'able' inserted within 'end' is 'ENABLED'.
'as' is the link.
(Other definitions for enabled that I've seen before include "Allowed" , "Made possible, facilitated" , "Qualified" , "Made something possible" , "Made competent" .)