Shake hands and briefly say hello after midday? (5)
I believe the answer is:
agree
'shake hands' is the definition.
(I've seen this in another clue)
'briefly say hello after midday?' is the wordplay.
'briefly' means to remove the last letter.
'say hello' becomes 'greet' (I've seen this in another clue).
'after' is a charade indicator (letters next to each other).
'midday?' becomes 'a' (I can't explain this - if you can you should believe this answer much more).
'greet' with its last letter taken off is 'gree'.
'gree' after 'a' is 'AGREE'.
'and' is the link.
Can you help me to learn more?
(Other definitions for agree that I've seen before include "Settle" , "Concur, coincide" , "Accept" , "Shake on it" , "Have the same idea" .)