Appealing not to lose everything (7)
I believe the answer is:
winsome
'appealing' is the definition.
(I've seen this before)
'not to lose everything' is the wordplay.
'not to lose' becomes 'win' ('win' is the opposite to 'lose').
'everything' becomes 'some' (I am not sure about this - if you are sure you should believe this answer much more).
'win'+'some'='WINSOME'
Can you help me to learn more?
(Other definitions for winsome that I've seen before include "Charming - sweet" , "Appealingy attractive" , "Captivating" , "Attractive and fresh" , "Holding an appeal" .)