English politician to be in debt to Queen giving sanction (7)
I believe the answer is:
empower
'sanction' is the definition.
(thesaurus)
'english politician to be in debt to queen' is the wordplay.
'english' becomes 'e' (abbreviation).
'politician' becomes 'mp'.
'to be in debt to' becomes 'owe' (I've seen this before).
'queen' becomes 'r' (r is abbreviation regina. e.g. in ER ).
'e'+'mp'+'owe'+'r'='EMPOWER'
'giving' acts as a link.
(Other definitions for empower that I've seen before include "Sanction" , "Enable, authorise" , "Entitle" , "Endow with authority" , "Allow" .)