Niche, alcove (6)
I believe the answer is:
recess
I believe this clue is a double definition.
'niche' is the first definition.
(I know that niche can be written as recess)
'alcove' is the second definition.
(I've seen this in another clue)
(Other definitions for recess that I've seen before include "In a corner" , "Niche, hollow in a wall" , "Find niche" , "Breaktime" , "Nook for a break from business" .)