Open wide (4)
'open wide' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for yawn that I've seen before include "Open mouth wide" , "Boring event" , "Bored sign" , "Involuntary sign of tiredness or boredom" , "Show boredom" .)
'open wide' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gape that I've seen before include "Gawp" , "Look amazed" , "Stare with open mouth in wonder" , "watch in wonder" , "Stare at page" .)