Sees us hiding, eating Japanese food (5)
I believe the answer is:
sushi
'japanese food' is the definition.
(sushi is a type of Japanese food)
'sees us hiding eating' is the wordplay.
'eating' indicates the answer is hidden within the clue.
'SUSHI' can be found hidden inside 'sees us hiding'.
(Other definitions for sushi that I've seen before include "put away in Japan" , "Rice, seafood cuisine" , "Japanese cold rice dish" , "rice dishes" , "Raw fish dishes" .)