Take a good look at the box, perhaps (6)
I believe the answer is:
goggle
'take' is the definition.
The answer and definition can be both to do with perception as well as being verbs in their base form.
Maybe there's a link between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for goggle that I've seen before include "Look in amazement with wide open eyes" , "Stare wide-eyed in amazement" , "Hit, beat (archaic)" , "wonder" .)