Crossword Genius

Clue to dastardly con followed up here? (3,8,4)

Ross

I believe the answer is:

new scotland yard

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

'clue to dastardly con followed up' is the wordplay.
'clue' becomes 'new' (I can't justify this - if you can you should give a lot more credence to this answer).
'to' says to put letters next to each other.
'followed' says to put letters next to each other.
'up' indicates anagramming the letters (letters get chucked up).
'dastardly'+'con'='dastardlycon'
'dastardlycon' is an anagram of 'scotlandyard'.
'new'+'scotlandyard'='NEW SCOTLAND YARD'

(Other definitions for new scotland yard that I've seen before include "A place for pigs!" , "police HQ" .)

I've seen this clue in The Guardian.
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