Drag back to study in Dutch capital - the alternative one (6)

I believe the answer is:

gulden

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'dutch capital the alternative one' is the definition.
I can't tell whether this defines the answer.

'drag back to study' is the wordplay.
'drag' becomes 'lug' (I've seen this in another clue).
'back' shows that the letters should be reversed in order.
'to study' becomes 'den' (term for a study or office).
'lug' in reverse letter order is 'gul'.
'gul'+'den'='GULDEN'

'in' acts as a link.

Can you help me to learn more?

(Another definition for gulden that I've seen is " Unit of money in the Netherlands, formerly".)

I've seen this clue in The Irish Times.

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