It's blown up for viewing (5)
I believe the answer is:
inset
'it's blown up for viewing' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for inset that I've seen before include "Small diagram inside another" , "Picture placed within another" , "Part of picture" , "Put (one thing) into (another)" , "Intimidated" .)