Dish needs no Moselle in cooking (5,4)
I believe the answer is:
lemon sole
'dish' is the definition.
'no moselle in cooking' is the wordplay.
'no moselle' anagrams to 'LEMON SOLE'.
But, I'm not clear how the anagram is indicated.
'needs' acts as a link.
Can you help me to learn more?
(Other definitions for lemon sole that I've seen before include "fish to eat" , "Another tasty flatfish like lone citrus fruit" , "Edible flatfish" , "Common flatfish" , "swimmer" .)