Green’s Dictionary of Slang

click adj.

[click v.3 (2)]

(US) successful.

[US]W. Winchell On Broadway 15 Oct. [synd. col.] 46th street couldn’t get a click show in over 5 years.
[US]W. Winchell On Broadway 26 Aug. [synd. col.] Appearing in a click drama also has its drawbacks.