Expressed boredom or sleepiness (6)

I believe the answer is:

yawned

(Other definitions for yawned that I've seen before include "Showed that one was tired" , "Showed tiredness or boredom" , "Breathed deeply with mouth wide open" , "Gave mute evidence of boredom" , "Showed tiredness or tedium" .)

I've seen this clue in the USA Today.

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