Approach doctor with bristle on lughole (4,4)
I believe the answer is:
draw near
'approach' is the definition.
(I know that approach can be written as draw near)
'doctor with bristle on lughole' is the wordplay.
'doctor' becomes 'dr' (abbreviation).
'with' says to put letters next to each other.
'bristle' becomes 'awn' (botanical term).
'on' is a charade indicator (letters next to each other).
'lughole' becomes 'ear' (I've seen this before).
'dr'+'awn'+'ear'='DRAW NEAR'
(Other definitions for draw near that I've seen before include "get closer" , "Come close" , "Approach" .)