Never-ending dissection of regressive despot's nonsense (7)

I believe the answer is:

nonstop

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'never-ending' is the definition.
(I've seen this before)

'of regressive despot's nonsense' is the wordplay.
'regressive' is a reversal indicator (to regress is to go backwards).
'of' indicates a hidden word.
'potsnon' is hidden in the letters of 'despots nonsense'.
'potsnon' reversed gives 'NONSTOP'.

'dissection' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for nonstop that I've seen before include "Express" , "Continuous, without pause" , "24/7?" , "Going straight from A to B" , "Constant" .)

I've seen this clue in The Irish Times.

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