At that very moment? Or not do the work? (2,3,3)
I believe the answer is:
on the dot
'at that very moment?' is the definition.
The definition and answer are not the same part of speech.
'not do the work?' is the wordplay.
'work?' indicates an anagram (I've seen 'work' mean this).
'not'+'do'+'the'='notdothe'
'notdothe' is an anagram of 'ON THE DOT'.
'or' acts as a link.
Can you help me to learn more?
(Other definitions for on the dot that I've seen before include "At precisely the right time" , "at exactly the arranged time" , "Precisely punctual" , "Sharp" , "Absolutely punctual" .)