Sentence:  In a typical Morris cock-snook at classical technique, tutu-ed dancers prance Bambi-like across the stage. On and off, on and off, with fixed smiles like <WSD>overwound</WSD> clockwork dolls: it should have been charming and funny, but despite stylish individual efforts, the ragged ensemble meant the joke fell flat. 
Meaning of the word marked with <WSD> tags:  To wind (tighten a spring of) something excessively.