Criminal boss is dope? Surprise, surprise! (4,4)

I believe the answer is:

drug lord

'criminal boss' is the definition.
(someone who sells drugs)

'dope? surprise surprise' is the wordplay.
'dope?' becomes 'drug' (doping is a kind of drugging).
'surprise surprise' becomes 'lord' ('lord!' can be an expression of surprise).
'drug'+'lord'='DRUG LORD'

'is' is the link.

I've seen this clue in The Guardian.

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