What does the cryptic crossword clue "Train crashes overlooking a Balkan capital (6)" mean?

The definition is "capital". The wordplay uses an anagram. anagram of TRAIN + A = TIRANA; definition: "capital" The answer is TIRANA.

Train crashes overlooking a Balkan capital (6)

Daily Mail Cryptic #17442 | 3 Down | 2024-09-10 flower