Current minister is right (8)
I believe the answer is:
accurate
'is right' is the definition.
('accurate' can be similar in meaning to 'right')
'current minister' is the wordplay.
'current' becomes 'ac' (alternating current).
'minister' becomes 'curate' ('curate' can be a synonym of 'minister').
'ac'+'curate'='ACCURATE'
(Other definitions for accurate that I've seen before include "Spot on" , "Factual" , "strict" , "Spot-on" , "Meticulous" .)