Protectors a fellow gets on the blower (9)

I believe the answer is:

coverings

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'protectors' is the definition.
Although both the answer and definition are plural nouns, I don't understand how one could define the other.

'a fellow gets on the blower' is the wordplay.
I cannot really see how this works, but
'fellow' could be 'cove' (British slang term) and 'cove' is located in the answer.
The remaining letters 'rings' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

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I've seen this clue in The Daily Express.

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