Niches found during the holidays (8)
I believe the answer is:
recesses
'niches' is the definition.
('recess' can be a synonym of 'niche')
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for recesses that I've seen before include "Niches or small spaces" , "Secret places" , "Small concavities" , "Nooks and alcoves" .)