Pocket hanky ought to muffle cheers (5,3)
I believe the answer is:
thank you
'cheers' is the definition.
(I've seen this before)
'pocket hanky ought to muffle' is the wordplay.
'THANK YOU' is hidden in amongst the letters.
However, I'm uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for thank you that I've seen before include "Conventional expression of gratitude" , "I'm grateful" , "Ta" , "show appreciation" , "Words of acknowledgement" .)