Part of journey close to a railway is famous (9)
I believe the answer is:
legendary
'famous' is the definition.
(I've seen this before)
'part of journey close to a railway' is the wordplay.
'part of journey' becomes 'leg' ('leg' is part of 'journey').
'close' becomes 'end' (close can mean to end or finish).
'railway' becomes 'ry' (abbreviation for railway).
'leg'+'end'+'a'+'ry'='LEGENDARY'
'is' is the link.
(Other definitions for legendary that I've seen before include "Fabled - green lady (anag)" , "Relating to old or mythological tales" , "Mythical or fabled" , "Well-known" , "Celebrated in fable" .)