Slip where shopper gets in oriental drink? (7)
I believe the answer is:
erratum
'slip' is the definition.
(I've seen this before)
'shopper gets in oriental drink?' is the wordplay.
'shopper' becomes 'rat' (I've seen this before).
'gets in' means one lot of letters goes inside another.
'oriental' becomes 'e'.
'drink?' becomes 'rum' (rum is a kind of drink**).
'e'+'rum'='erum'
'rat' going within 'erum' is 'ERRATUM'.
'where' acts as a link.
(Other definitions for erratum that I've seen before include "fluff on paper" , "Printing mistake" , "gaffe" , "Faux pas" , "Printer's mistake" .)