4 down
Rule
with
old
king
in
new
seat
(7)
Rule with old king in new seat (7)
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hints
The definition is at the beginning of the clue.
How the clue works
The definition is Rule, giving STATUTE. The wordplay involves an anagram of "seat" indicated by "new", which gives STAE. Then TUT (short for Tutankhamun, the "old king") is placed "in" STAE, splitting it as STA-TUT-E to produce STATUTE.