Woman Caesar’s salutation upset (3)
I believe the answer is:
eva
'woman' is the definition.
(woman's name)
'caesar's salutation upset' is the wordplay.
'caesar's salutation' becomes 'ave' (Roman greeting).
'upset' is a reversal indicator.
'ave' in reverse letter order is 'EVA'.
(Other definitions for eva that I've seen before include "Braun, Brick or Peron" , "Little --, US pop singer" , "-- Peron, Argentinian First Lady" , "Dame - - Turner, soprano" , "-- Cassidy, singer, 1963-96" .)