Gape (at) (5)

I believe the answer is:
stare
'gape at' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stare that I've seen before include "Long fixed look" , "Look with fixed eyes" , "Gawp" , "'Look fixedly, without blinking (5)'" , "bird" .)