Airline introducing secure container for duty free? (7,3)
I believe the answer is:
carrier bag
'container for duty free?' is the definition.
I can't tell whether this defines the answer.
'airline introducing secure' is the wordplay.
'airline' becomes 'carrier' (I've seen this before).
'introducing' means one lot of letters go next to another.
'secure' becomes 'bag' (I've seen this before).
'carrier'+'bag'='CARRIER-BAG'
Can you help me to learn more?
(Other definitions for carrier bag that I've seen before include "Shopping holder" , "shopper" , "this from supermarket?" , "Hand luggage" , "Shopping container" .)