Brave to yield leadership to multinational force — and doomed (7)
I believe the answer is:
unlucky
'doomed' is the definition.
(I know that doomed can be written as unlucky)
'brave to yield leadership to multinational force' is the wordplay.
'brave' becomes 'plucky' (I've seen this before).
'to yield leadership' means to remove the first letter.
'to' says to put letters next to each other (I've seen this in other clues).
'multinational force' becomes 'UN' (United Nations).
'plucky' with its first letter removed is 'lucky'.
'lucky' put after 'un' is 'UNLUCKY'.
'and' acts as a link.
(Other definitions for unlucky that I've seen before include "Ill-omened" , "How some see 13" , "without a break" , "Wretched" , "Misfortunate" .)