For instance, rain regularly interrupts a country ramble? (13)
I believe the answer is:
peregrination
'ramble?' is the definition.
(thesaurus)
'for instance rain regularly interrupts a country' is the wordplay.
'for instance' becomes 'eg' ('e.g.' can be a synonym of 'for instance').
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'interrupts' means one lot of letters goes inside another.
'a' becomes 'per'.
'country' becomes 'nation' ('nation' can be a synonym of 'country'**).
The alternate letters of 'rain' are 'ri'.
'eg'+'ri'='egri'
'per'+'nation'='pernation'
'egri' inserted into 'pernation' is 'PEREGRINATION'.
(Other definitions for peregrination that I've seen before include "Globe-trotting" , "wandering" , "Travelling about" , "Long meandering journey" .)