Give a speech in class after two, finally (5)
I believe the answer is:
orate
'give a speech' is the definition.
(oratory is public speaking)
'class after two finally' is the wordplay.
'class' becomes 'rate' (class can mean to rank or rate).
'after' says to put letters next to each other.
'finally' suggests the final letters.
The final letter of 'two' is 'o'.
'rate' put after 'o' is 'ORATE'.
'in' is the link.
(Other definitions for orate that I've seen before include "Make a flowery speech" , "Make a pompous speech" , "Declaim or rant" , "Give speech" , "Speak pompously and at length" .)