Idiot trading wonky electricals round Peckham initially (5)

I believe the answer is:

twerp

'idiot' is the definition.
(I've seen this before)

'trading wonky electricals round peckham initially' is the wordplay.
'initially' says to take the initial letters.
The initial letters of 'trading wonky electricals round peckham' is 'TWERP'.

(Other definitions for twerp that I've seen before include "Contemptible person" , "ass" , "Fool" , "Nincompoop" , "dope" .)

I've seen this clue in The Times.

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