1) Behind the scenes 2) In the wings 3) In theatre wings 4) Like many lines fed to actors 5) Not in public 6) Not on stage 7) Out of view, at the theater 8) Source of some acting prompts Found on https://www.crosswordclues.com/clue/offstage
[adj] - withheld from public view or attention 2. [adj] - situated or taking place in the area of a stage not visible to the audience 3. [adv] - behind the scenes 4. [adv] - not in public Found on http://www.webdictionary.co.uk/definition.php?query=offstage
adjective situated or taking place in the area of a stage not visible to the audience; `offstage noises` Found on https://www.encyclo.co.uk/local/20974