Slip out during day to see show? (7)
I believe the answer is:
display
'show?' is the definition.
(display can mean to show or expose)
'slip out during day' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'during' is an insertion indicator.
'slip' anagrammed gives 'ispl'.
'ispl' going inside 'day' is 'DISPLAY'.
'to see' acts as a link.
(Other definitions for display that I've seen before include "Show or arrange" , "Showcase" , "Exhibit, show" , "Show to the public" , "Exhibition" .)