Stare when page gets screwed up (4)
I believe the answer is:
gape
'stare' is the definition.
(I know that gape is a type of stare)
'page gets screwed up' is the wordplay.
'page' anagrams to 'GAPE'.
Though, I'm not sure how the anagram is indicated.
'when' acts as a link.
Can you help me to learn more?
(Other definitions for gape that I've seen before include "wide opening" , "watch in wonder" , "Look open-mouthed" , "Look in amazement or stupidity" , "Yawn" .)