Crossword Genius

Talk at length about scourge and spend extravagantly (6,3)

Ross

I believe the answer is:

splash out

'spend extravagantly' is the definition.
(to splash out is to spend a lot of money)

'talk at length about scourge' is the wordplay.
'talk at length' becomes 'spout' (I've seen this in another clue).
'about' is an insertion indicator.
'scourge' becomes 'lash' (both can mean a whip).
'spout' enclosing 'lash' is 'SPLASH OUT'.

'and' is the link.

(Other definitions for splash out that I've seen before include "Spend money freely" , "extravagant" , "Spend a lot of money" , "Blow brass" .)

I've seen this clue in The Telegraph.
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