Delighted with the Guardian's stated time for an economy round (5,4)
I believe the answer is:
happy hour
'time for an economy round' is the definition.
'delighted with the guardian's stated' is the wordplay.
'delighted' becomes 'happy' (I've seen this before).
'with' says to put letters next to each other.
'the guardian's' becomes 'our' (I've seen this in other clues).
'stated' shows a homophone (sound like).
'our' is a homophone of 'hour'.
'happy'+'hour'='HAPPY HOUR'
(Other definitions for happy hour that I've seen before include "Cheap drinking time" , "Period of cheap drinks" , "Period of reduced prices in public bar" , "glasses are now reduced" , "pub's promotion" .)