Approach Independent parliamentarian at border (6)
I believe the answer is:
impend
'approach' is the definition.
(I've seen this before)
'independent parliamentarian at border' is the wordplay.
'independent' becomes 'i'.
'parliamentarian' becomes 'MP' (Member of Parliament).
'at' says to put letters next to each other.
'border' becomes 'end' (I've seen this in other clues).
'i'+'mp'+'end'='IMPEND'
(Other definitions for impend that I've seen before include "Be about to take place" , "menace" , "appearing to be imminent" , "(Of a bad thing) loom" , "seen to be around the corner" .)