Very easy to return universal copyright bottled condiment (3,5)
I believe the answer is:
soy sauce
'condiment' is the definition.
(soy sauce is a kind of condiment)
'very easy to return universal copyright bottled' is the wordplay.
'very' becomes 'so' (both can mean 'extremely').
'to return' says the letters should be written in reverse.
'universal' becomes 'U' (film certificate).
'copyright' becomes 'C' (as in the copyright symbol, a C in a circle).
'bottled' indicates putting letters inside (to bottle can mean contain).
'easy' in reverse letter order is 'ysae'.
'u'+'c'='uc'
'ysae' going around 'uc' is 'ysauce'.
'so'+'ysauce'='SOY SAUCE'
(Other definitions for soy sauce that I've seen before include "Condiment" , "Ingredient in Chinese" , "Eastern cooking ingredient" , "Staple of eastern cooking" , "addition to a meal" .)