Speech made in summer month by Russian river (9)
I believe the answer is:
inaugural
'speech' is the definition.
(I know that inaugural is a type of speech)
'in summer month by russian river' is the wordplay.
'summer month' becomes 'aug' (short for August).
'by' means one lot of letters go next to another.
'russian river' becomes 'ural' (I've seen this in another clue).
'in'+'aug'+'ural'='INAUGURAL'
'made' is the link.
(Other definitions for inaugural that I've seen before include "It may be delivered" , "Relating to start of job or course" , "Of a ceremony officially marking the beginning of something" , "First address" , "Maiden" .)