
1) Actor 2) Actor waiting for a break 3) Broadway backup 4) Histrion 5) Player 6) Role player 7) Someone acting as a stopgap 8) Sometime substitute 9) Stand-in actor 10) Standby 11) Thespian 12) To act as an understudy
Found on
https://www.crosswordclues.com/clue/understudy

1) Replacement 2) Reserve 3) Standby 4) Sub 5) Substitute
Found on
https://www.crosswordclues.com/clue/understudy

In theater, an understudy is a performer who learns the lines and blocking/choreography of a regular actor or actress in a play. Should the regular actor or actress be unable to appear on stage because of illness or emergencies, the understudy takes over the part. Usually when the understudy takes over, the theater manager will make a relevant ann...
Found on
http://en.wikipedia.org/wiki/Understudy

• (n.) One who studies another`s part with a view to assuming it in an emergency. • (v. t. & i.) To study, as another actor`s part, in order to be his substitute in an emergency; to study another actor`s part.
Found on
http://thinkexist.com/dictionary/meaning/understudy/

An actor playing a small part in a production or, in the professional theatre, often an Assistant Stage Manager, who has learned and rehearsed the part of one of the leading actors to take over from him/her in the event of illness etc.
Found on
http://www.encyclo.co.uk/local/21207

An actor who learns the part of another ready to step into their shoes should they not be able to perform due to illness or other reasons. Also Cover.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

[
n] - an actor able to replace a regular performer when required 2. [v] - be an understudy or alternate for a role
Found on
http://www.webdictionary.co.uk/definition.php?query=understudy

It’s like substitute teaching but one step closer to winning a Tony.
Found on
https://theatrenerds.com/40-theatre-terms-every-thespian-should-know/
standby noun an actor able to replace a regular performer when required
Found on
https://www.encyclo.co.uk/local/20974

An actor playing a small part in a production or, in the professional theatre, often an Assistant Stage Manager, who has learned and rehearsed the part of one of the leading actors to take over from him/her in the event of illness etc.
Found on
https://www.encyclo.co.uk/local/21782
No exact match found.