Small number approach, right to enter country (6)
I believe the answer is:
norway
'country' is the definition.
(Norway is an example)
'small number approach right to enter' is the wordplay.
'small number' becomes 'no' (abbreviation for 'number').
'approach' becomes 'way' (a way of doing something).
'right' becomes 'r' (abbreviation).
'to enter' means one lot of letters goes inside another.
'no'+'way'='noway'
'noway' placed around 'r' is 'NORWAY'.
(Other definitions for norway that I've seen before include "Country of fjords" , "Ray won (anag)" , "Mountainous country" , "Trondheim country" , "Where Quisling was" .)