Troops in disarray after Ukraine's leader pulls out completely (7)
I believe the answer is:
uproots
'pulls out completely' is the definition.
I can't judge whether this defines the answer.
'troops in disarray after ukraine's leader' is the wordplay.
'in disarray' is an anagram indicator.
'after' means one lot of letters go next to another.
'leader' says to take the initial letters.
The first letter of 'ukraines' is 'u'.
'troops' with letters rearranged gives 'proots'.
'proots' put after 'u' is 'UPROOTS'.
Can you help me to learn more?
(Other definitions for uproots that I've seen before include "Completely destroys" , "tears out of bed" , "Displaces -- or put so (anag)" , "Tears from natural habitat or ground" , "Eradicates" .)