Dull serfs improved in formal attire (4,5)
I believe the answer is:
full dress
'formal attire' is the definition.
'full dress' can be an answer for 'attire' (full dress is a kind of attire). I am not sure about the 'formal' bit.
'dull serfs improved' is the wordplay.
'improved' indicates anagramming the letters.
'dull'+'serfs'='dullserfs'
'dullserfs' with letters rearranged gives 'FULL-DRESS'.
'in' is the link.
Can you help me to learn more?
I've seen this clue in The Daily Express.
Want a hint initially instead of a full solution?
Install my app