Crossword clue: a right reserved exclusively by a particular person or group (especially a hereditary or official right)

The most common answer is perquisite (10 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

perquisite 10 letters wn-def

a right reserved exclusively by a particular person or group (especially a hereditary or official right)

prerogative 11 letters wn-def

a right reserved exclusively by a particular person or group (especially a hereditary or official right)