Homely entertainment (5)

I believe the answer is:

telly

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'homely entertainment' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

This is all the clue.

Can you help me to learn more?

(Other definitions for telly that I've seen before include "TV (colloq.)" , "Familiar name for TV" , "cop in seventies" , "Set" , "Television" .)

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