Revolutionary Leninist before the start of glasnost paying attention … (9)

I believe the answer is:

listening

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'paying attention' is the definition.
'listening' can be an answer for 'attention' (thesaurus). I'm not certain of the 'paying' bit.

'revolutionary leninist before the start of glasnost' is the wordplay.
'revolutionary' indicates an anagram.
'before' is a charade indicator (letters next to each other).
'the start of' says to take the initial letters.
The first letter of 'glasnost' is 'g'.
'leninist' anagrammed gives 'listenin'.
'listenin'+'g'='LISTENING'

Can you help me to learn more?

(Other definitions for listening that I've seen before include "all ears" , "Hearing attentively" , "Hearing, heeding" .)

I've seen this clue in The Guardian.

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