Speak rhetorically of the love for speed (5)
I believe the answer is:
orate
'speak rhetorically' is the definition.
'orate' can be an answer for 'speak' (orating is a kind of speaking). I am not certain of the 'rhetorically' bit.
'the love for speed' is the wordplay.
'the love for' becomes 'o' (I've seen this in other clues).
'speed' becomes 'rate' (the speed at which something happens).
'o'+'rate'='ORATE'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for orate that I've seen before include "Erato (anag.)" , "Make a lengthy speech" , "Declaim or rant" , "Speechify" , "Speak in public" .)