He started off slowly and didn't get going until the middle of the show when he was clicko.
1948 — Charles J. Lazarus, "Gayety, Montreal", The Billboard, 19 January 1948:
The Two Mirths also get across in their knockabout stint, with the dummy bit being especially clicko.
1948 — Charles J. Lazarus, "Gayety, Montreal", The Billboard, 10 July 1948:
A looker, she showed a clicko personality which should go over in other vauders or cafes with more English thrown in.
1948 — Charles J. Lazarus, "El Morocco, Montreal", The Billboard, 28 August 1948:
Naomi Stevens […] registered in the tee-off spot with a clicko appearance and well-handled special material.
1951 — Joe Laurie, Jr. & Abel Green, Show Biz: From Vaude to Video, Henry Holt and Company (1951), page 63:
The sixth Ziegfeld Follies, in the year Anna Held sued the producer for divorce, was again clicko with song lyrics by Gene Buck, who later produced many of Ziggy's Follies editions, plus 16 of his Midnight Frolics.
If only for the fact that it tipped off the practicability of integrating the vast reservoir of clicko variety talent into the industry's newest offspring, the Texaco curtain-raiser was a significant milestone.
Noun: "(dated, entertainment) an extremely successful production; a hit"