Fish something worthless on its own? (5,4)
I believe the answer is:
lemon sole
'its own?' is the definition.
I can't tell whether this definition defines the answer.
'fish something worthless on' is the wordplay.
'fish' becomes 'sole' (sole is a kind of fish).
'something worthless' becomes 'lemon' (I've seen this before).
'on' means one lot of letters go next to another.
'sole' after 'lemon' is 'LEMON SOLE'.
Can you help me to learn more?
(Other definitions for lemon sole that I've seen before include "fish to eat" , "Common flatfish" , "Lose melon, find kind of plaice" , "Succulent flatfish associated with citrus fruit" , "Edible flatfish" .)