Hello,
The full text appears to read:
Jane, Relict of William Hogg, Hostler, from No. 7, Abbey Hill is buried in the New ground, 6 feet S. from W. Russell, purchaser, on the east border.
Relict means widow and Hostler, or Ostler, is normally someone who looks after horses.
The entry describes the location in the cemetery. I've seen this before in my own family in Edinburgh where their [unmarked] graves are described in reference to one that is. So Jane is buried six feet south from the lair of William Russell, on the east border of the cemetery. To find her grave, you'd have to find Mr Russell's.
I'm not definitely sure what 'purchaser' signifies - it might mean that W. Russell was the purchaser of the grave used as a reference point, but he may not yet have been buried in it. Perhaps there was already a stone marking other Russell family members.
I hope this helps.
Rockford