Promptly noted — hot stew (2,3,3)
I believe the answer is:
on the dot
'promptly' is the definition.
(on the dot means precisely at the appointed time)
'noted hot stew' is the wordplay.
'stew' indicates anagramming the letters.
'noted'+'hot'='notedhot'
'notedhot' is an anagram of 'ON THE DOT'.
(Other definitions for on the dot that I've seen before include "Precisely punctual" , "Absolutely punctual" , "Sharp" , "Promptly" , "At exactly the right time" .)