Place for waiter bringing thick slice of bread (8)
I believe the answer is:
doorstep
I believe this is a double definition.
'place for waiter' is the first definition.
(someone might wait at a doorstep after knocking)
'thick slice of bread' is the second definition.
(I've seen this before)
'bringing' acts as a link.
(Other definitions for doorstep that I've seen before include "Large slice of bread?" , "Try some canvassing" , "substantial amount of bread" , "To conduct house-to-house interviews" , "chunk of bread" .)