Hold forth saucer with change in euros (9)
I believe the answer is:
discourse
'hold forth' is the definition.
(I know that hold forth can be written as discourse)
'saucer with change in euros' is the wordplay.
'saucer' becomes 'disc' (synonyms).
'with' says to put letters next to each other.
'change in' is an anagram indicator.
'euros' with letters rearranged gives 'ourse'.
'disc'+'ourse'='DISCOURSE'
(Other definitions for discourse that I've seen before include "verbal communication" , "Written or spoken communication" , "(Formal) talk" , "To hold a conversation" , "Communication verbally" .)