Spotted and quoted on the radio (7)
I believe the answer is:
sighted
'spotted' is the definition.
(I've seen this before)
'quoted on the radio' is the wordplay.
'quoted' becomes 'cited' ('cite' can be a synonym of 'quote').
'on the radio' shows a homophone (sound like).
'cited' sounds like 'SIGHTED'.
'and' acts as a link.
(Other definitions for sighted that I've seen before include "Not blind" , "with a view?" , "Saw, observed" , "Glimpsed" , "Noticed" .)