Right to go in and have something to eat (6)
I believe the answer is:
entree
'right to go in' is the definition.
(I've seen this before)
'and have something to eat' is the wordplay.
I cannot really see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'something to eat' could be 'e' (E is an example) and 'e' is present in the answer.
The remaining letters 'tree' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for entree that I've seen before include "The right to enter a particular sphere" , "Means of access - course" , "The right to be admitted" , "Dish; right of admission" , "The right ot privilege of admission" .)