Look to fiddle the rates (5)
I believe the answer is:
stare
'look' is the definition.
(I know that stare is a type of look)
'fiddle the rates' is the wordplay.
'fiddle' is an anagram indicator.
'rates' anagrammed gives 'STARE'.
'to' is the link.
(Other definitions for stare that I've seen before include "Look hard" , "Gaze fixedly" , "Long fixed look" , "Look with fixed gaze" , "Gawp" .)