Dogs used by Speke? (5)

I believe the answer is:

pekes

I'm a little stuck... Click here to teach me more about this clue!

'dogs' is the definition.
(Peke is an example)

'by speke' is the wordplay.
'speke' anagrams to 'PEKES'.
Though, I'm not sure how the anagram is indicated.

'used' acts as a link.

Can you help me to learn more?

I've seen this clue in the Evening Standard.

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