Give opinion, for instance, on food and ticket price (7)
I believe the answer is:
airfare
'price' is the definition.
(I have seen 'Price of flying ' mean 'airfare' so perhaps 'price' could also mean 'airfare')
'give opinion for instance on food and ticket' is the wordplay.
I cannot really understand how this works, but
'on' could be 're' (regarding) and 're' is found within the answer.
'food' could be 'a' (A is an example) and 'a' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for airfare that I've seen before include "Money for a flight" , "Price of flying" , "Cost of a flight" , "flight damage" , "Fee for a flight" .)