Power behind throne dislocated in emergencies (8,5)
I believe the answer is:
eminence grise
'power behind throne' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'dislocated in emergencies' is the wordplay.
'dislocated' is an anagram indicator.
'in'+'emergencies'='inemergencies'
'inemergencies' with letters rearranged gives 'EMINENCE GRISE'.
Can you help me to learn more?
(Other definitions for eminence grise that I've seen before include "One exercising power in the background" , "Power behind the throne" .)