Crossword Genius

Rail link — cretin trashed it years later (9)

Ross

I believe the answer is:

intercity

'rail link' is the definition.
(rail linking two cities)

'cretin trashed it years later' is the wordplay.
'trashed' indicates anagramming the letters.
'years' becomes 'y' (abbreviation).
'later' means one lot of letters go next to another.
'cretin' is an anagram of 'interc'.
'interc'+'it'+'y'='INTERCITY'

I've seen this clue in The Guardian.
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