Good and extravagant speech in general (5)
I believe the answer is:
grant
'general' is the definition.
(Grant is an example)
'good and extravagant speech' is the wordplay.
'good' becomes 'g' (abbreviation).
'and' means one lot of letters go next to another.
'extravagant speech' becomes 'rant' (rant is a kind of speech. I am not sure about the 'extravagant' bit.).
'g'+'rant'='GRANT'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for grant that I've seen before include "Cary, Duncan or Ulysses S?" , "... Cambridgeshire village" , "Permit" , "Allow (something)" , "Agree to - bursary" .)