Wrong couple reportedly cast (4-6)
I believe the answer is:
pear-shaped
'wrong' is the definition.
Both the definition and answer are adjectives.
Maybe you can see a link between them that I don't see?
'couple reportedly cast' is the wordplay.
'couple' becomes 'pair' (synonyms).
'reportedly' indicates a 'sounds like' (homophone) clue.
'cast' becomes 'shaped' (I am not sure about this - if you are sure you should believe this answer much more).
'pair' is a homophone of 'pear'.
'pear'+'shaped'='PEAR-SHAPED'
Can you help me to learn more?
(Other definitions for pear-shaped that I've seen before include "With hips very wide compared to the upper body" , "Bottom-heavy: (gone) wrong" , "(Go) horribly wrong; like three Satie pieces" , "Fat at one end and thin at the other - all wrong!" .)