Eponymous heroine making a comeback at the end of the programme (4)

I believe the answer is:

emma

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'eponymous heroine' is the definition.
(heroine of Jane Austen's novel Emma)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for emma that I've seen before include "Lady - Hamilton, Nelson-s mistress" , "It's a girl - ask me ma" , "Best Actress Oscar winner 1992, for 'Howard's End'" , "Lady Hamilton or Lady Thompson?" , "Victorian prime minister" .)

I've seen this clue in The Irish Independent.

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