Excite a lady going round the bend (6)
I believe the answer is:
arouse
'excite' is the definition.
('arouse' can be a synonym of 'excite')
'a lady going round the bend' is the wordplay.
'lady' becomes 'rose' (**).
'going round' indicates putting letters inside.
'the bend' becomes 'u' (a U-bend is a kind of bend - pipe under sink).
'rose' going around 'u' is 'rouse'.
'a'+'rouse'='AROUSE'
(Other definitions for arouse that I've seen before include "Evoke (a feeling)" , "Excite, awaken" , "Stimulate or excite" , "Excite; provoke" , "Energise" .)