New chair flipped over Dr. King (7)
I believe the answer is:
richard
'king' is the definition.
(Richard I or Richard II)
'new chair flipped over dr' is the wordplay.
'new' is an anagram indicator.
'flipped over' is a reversal indicator.
'dr' reversed gives 'rd'.
'chair' is an anagram of 'richa'.
'richa'+'rd'='RICHARD'
(Other definitions for richard that I've seen before include "Mr Hannay" , "Play about hunchback" , "-- Wagner, composer" , "Branson or Cliff" , "Name of three English kings" .)