___ a yawn (hide your boredom) (6)

I believe the answer is:
stifle
(Other definitions for stifle that I've seen before include "Gag" , "Suppress of choke" , "Smother, check" , "Quash" , "Part of animal's leg" .)
I believe the answer is:
stifle
(Other definitions for stifle that I've seen before include "Gag" , "Suppress of choke" , "Smother, check" , "Quash" , "Part of animal's leg" .)