
1) Higher-up 2) Superior 3) Superordinate
Found on
https://www.crosswordclues.com/clue/supervisory

Colley Cibber was an English actor-manager, playwright, and Poet Laureate. His colorful Apology for the Life of Colley Cibber (1740) started a British tradition of personal, anecdotal, and even rambling autobiography. He wrote some plays for performance by his own company at the Theatre Royal, Drury Lane, and adapted many more from various sources...
Found on
http://en.wikipedia.org/wiki/Supervisory

• (a.) Of or pertaining to supervision; as, supervisory powers.
Found on
http://thinkexist.com/dictionary/meaning/supervisory/
Su`per·vi'so·ry adjective Of or pertaining to supervision; as,
supervisory powers.
Found on
http://www.encyclo.co.uk/webster/S/244

[
adj] - of or limited to or involving supervision
Found on
http://www.webdictionary.co.uk/definition.php?query=supervisory
adjective of or limited to or involving supervision; `in a supervisory capacity`
Found on
https://www.encyclo.co.uk/local/20974

of, pertaining to, or having supervision.
Found on
https://www.infoplease.com/dictionary/supervisory
No exact match found.