Plug from the telly? (13)

I believe the answer is:

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'plug from the telly?' is the definition.
(plug can mean an advertisement or promotional item)

'plug from' is the wordplay.
'plug' becomes 'advertise' (I've seen this before).
'from' becomes 'ment' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'advertise'+'ment'='ADVERTISEMENT'

Can you help me to learn more?

(Other definitions for advertisement that I've seen before include "plug" , "Publicity announcement" , "Notice - commercial" , "Commercial promotion" , "Public promotion" .)

I've seen this clue in The Telegraph.

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