A beautiful creature left in danger (5)
I believe the answer is:
peril
'in danger' is the definition.
(I've seen this before)
'a beautiful creature left' is the wordplay.
'a beautiful creature' becomes 'peri' (I can't explain this - if you can you should believe this answer much more).
'left' becomes 'l' (common abbreviation).
'peri'+'l'='PERIL'
Can you help me to learn more?
(Other definitions for peril that I've seen before include "Exposure to harm" , "Quest" , "Hazardous situation" , "Danger of serious kind" , "Immediate danger" .)