Old-fashioned US politician with something lyrical (6)
I believe the answer is:
demode
'old-fashioned' is the definition.
(I know that old-fashioned can be written as demode)
'us politician with something lyrical' is the wordplay.
'us politician' becomes 'dem' (short for Democrat).
'with' is a charade indicator (letters next to each other).
'something lyrical' becomes 'ode' (as in lyric poetry).
'dem'+'ode'='DEMODE'
(Other definitions for demode that I've seen before include "Old fashioned in France" , "Old-fashioned - in France" .)