Sleepy creatures solved crime after party (7)
I believe the answer is:
dormice
'sleepy creatures' is the definition.
'dormice' can be an answer for 'creatures' (dormouse is a kind of creature). I am not sure about the 'sleepy' bit.
'solved crime after party' is the wordplay.
'solved' is an anagram indicator (the anagram must be solved).
'after' is a charade indicator (letters next to each other).
'party' becomes 'do' (do is a kind of party).
'crime' is an anagram of 'rmice'.
'rmice' after 'do' is 'DORMICE'.
Can you help me to learn more?
(Other definitions for dormice that I've seen before include "Bushy-tailed rodents" , "creatures" , "Little hibernating rodents" , "They will hibernate" , "For these heavy sleepers" .)