Old PM from day one touring country (8)
I believe the answer is:
disraeli
'old pm' is the definition.
(Benjamin Disraeli, Victorian prime minister)
'day one touring country' is the wordplay.
'day' becomes 'd' (abbreviation for day).
'one' becomes 'i' (Roman numeral).
'touring' means one lot of letters goes inside another (touring can mean going round).
'country' becomes 'israel' (Israel is an example).
'd'+'i'='di'
'di' going around 'israel' is 'DISRAELI'.
'from' is the link.
(Other definitions for disraeli that I've seen before include "British PM and novelist" , "Benjamin ........ 19th century English P.M." , "Ali dries out for the former British prime minister" , "Queen Victoria's favourite prime minister, d. 1881" , "Victorian prime minister" .)