Squire gently embracing Queen? (6)
I believe the answer is:
regent
'queen?' is the definition.
(a queen might rule as a regent)
'squire gently embracing' is the wordplay.
'embracing' indicates a hidden word (the solution is embraced by words in the clue).
'REGENT' is hidden within 'squire gently'.
(Other definitions for regent that I've seen before include "One acting for monarch who is a minor" , "being temporarily in charge" , "Ruler appointed when monarch is too young or away" , "One who acts for a monarch" , "Replacement ruler" .)