Bird you could have for a lira? (4)

I believe the answer is:

rail

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'bird' is the definition.
(a wading bird)

'you could have for a lira?' is the wordplay.
'lira' anagrams to 'RAIL'.
However, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for rail that I've seen before include "Abuse, scold" , "Line" , "Scold, berate" , "Protest strongly (at)" , "Fulminate - wading bird" .)

I've seen this clue in the Evening Standard.

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