Showy fair lady? (5)

I believe the answer is:

eliza

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This could be a double definition.

'showy fair' is the first definition.
The definition suggests a singular noun which matches the answer.

'lady?' is the second definition.

Can you help me to learn more?

(Other definitions for eliza that I've seen before include "flower-girl in dramatic work" , "- Doolittle (Pygmalion)" , "Female" , "Miss Doolittle" , "- Doolittle (My Fair Lady)" .)

I've seen this clue in The Globe and Mail.

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