European bound by rail for Paddington? (4)
I believe the answer is:
bear
'paddington?' is the definition.
(Paddington Bear is an example)
'european bound by rail' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'bound by' is an insertion indicator (I've seen this in other clues).
'rail' becomes 'bar' (I've seen this in other clues).
'e' put into 'bar' is 'BEAR'.
'for' acts as a link.
(Other definitions for bear that I've seen before include "Show" , "Beast - tolerate" , "Paddington, Rupert" , "Heavy carnivorous quadruped" , "Falling market for large furry animal" .)