Come into empty Iranian hotel with flag raised (7)
I believe the answer is:
inherit
'come into' is the definition.
(synonyms)
'empty iranian hotel with flag raised' is the wordplay.
'empty' means to remove the middle letters.
'hotel' becomes 'h' (phonetic alphabet).
'with' means one lot of letters go next to another.
'flag' becomes 'tire' (both can mean to become weary).
'raised' says the letters should be written backwards (going up in a down clue).
'iranian' with its middle taken out is 'in'.
'tire' back-to-front is 'erit'.
'in'+'h'+'erit'='INHERIT'
(Other definitions for inherit that I've seen before include "Receive from a deceased parent" , "Receive from a predecessor" , "Succeed as heir" , "Receive as a legacy" , "Receive by succession or via a will" .)