Old lover dumped sweetheart with cutting lingo? What a long-legged bird! (8)
I believe the answer is:
flamingo
'long-legged bird' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for flamingo that I've seen before include "colourful bird" , "Long-legged bird" , "Pink wading-bird" , "Long-legged wader" , "Exotic bird" .)