Poorly lit with total Chinese dish (3,3)
I believe the answer is:
dim sum
'chinese dish' is the definition.
(I've seen this before)
'poorly lit with total' is the wordplay.
'poorly lit' becomes 'dim' (I've seen this before).
'with' means one lot of letters go next to another.
'total' becomes 'sum' (synonyms).
'dim'+'sum'='DIM SUM'
(Other definitions for dim sum that I've seen before include "oriental dish" , "Chinese appetiser" , "Selection of Chinese appetizers" , "Asian food" , "Chinese dumpling dish" .)