Tart embracing Queen causes umbrage (5)
I believe the answer is:
pique
'umbrage' is the definition.
(thesaurus)
'tart embracing queen' is the wordplay.
'tart' becomes 'pie' (I've seen this before).
'embracing' means one lot of letters goes inside another.
'queen' becomes 'qu'.
'pie' enclosing 'qu' is 'PIQUE'.
'causes' is the link.
(Other definitions for pique that I've seen before include "Wound (pride); resentment" , "Hurt feelings" , "Slight reaction" , "Offence taken" , "Umbrage; irritation" .)