This might cover lead actor's head in rude video (10,4)

I believe the answer is:

insulating tape

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'this might cover lead' is the definition.
(I know this)

'actor's head in rude video' is the wordplay.
'actor's head' becomes 'a' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'rude' becomes 'insulting'.
'video' becomes 'tape' (video tape).
'a' inserted into 'insulting' is 'insulating'.
'insulating'+'tape'='INSULATING TAPE'

Can you help me to learn more?

(Other definitions for insulating tape that I've seen before include "binder?" , "sticky strip" , "Wrap for exposed electric wires" .)

I've seen this clue in The Times.

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