Cover in example sentence
With a modicum of witty repartee, some excellent carnival locations, and an unusual villain (a master spy whose cover is playing a sideshow mechanical man), this one might have ascended from third to second rate, were it not for Morris's acting (mostly a matter of flashing a grin that looks too wide for his face) and his hat (its too-small brim accentuates his big square face and makes him look stupid amongst all the elegant, wide-brimmed hats worn by everybody else, even the weaselly villains).