A bit macabre — a stranger got alongside (7)
I believe the answer is:
abreast
'alongside' is the definition.
(I've seen this before)
'a bit macabre a stranger' is the wordplay.
'a bit' indicates the answer is hidden within the clue (the answer is formed by a bit of the clue).
'ABREAST' is hidden in the letters of 'macabre a stranger'.
'got' is the link.
(Other definitions for abreast that I've seen before include "Side by side; keeping pace" , "acquainted" , "Familiar" , "to be up to date" , "On a level together" .)