New PM briefly absorbed by case of Egypt delegate (7)
I believe the answer is:
entrust
'case of egypt delegate' is the definition.
'entrust' can be an answer for 'delegate' (thesaurus). I am not certain of the 'case of egypt' bit.
'new pm briefly absorbed by' is the wordplay.
'new' becomes 'ent' (I am not sure about this - if you are sure you should believe this answer much more).
'pm' becomes 'Truss' (former UK prime minister Liz Truss).
'briefly' means to remove the last letter.
'absorbed by' is an insertion indicator.
'truss' with its final letter taken away is 'trus'.
'ent' going around 'trus' is 'ENTRUST'.
Can you help me to learn more?
(Other definitions for entrust that I've seen before include "Give custody of" , "Put into someone's care" , "Give for safekeeping" , "Commit (for safety)" , "Place in the care or protection of someone" .)