Opportunity to relish superficial presentation (6,8)
I believe the answer is:
window dressing
'superficial presentation' is the definition.
'window-dressing' can be an answer for 'presentation' (I have seen 'Dodgy presentation' mean 'window-dressing' so perhaps 'presentation' could also mean 'window-dressing'). I am unsure of the 'superficial' bit.
'opportunity to relish' is the wordplay.
'opportunity' becomes 'window' (I've seen this before).
'to relish' becomes 'dressing'.
'window'+'dressing'='WINDOW-DRESSING'
Can you help me to learn more?
(Other definitions for window dressing that I've seen before include "nothing very substantial" , "It's the spin doctor's speciality" , "Facade" , "show" , "sham designed to look good!" .)