Something for angler in River Oder (3)
I believe the answer is:
rod
'something for angler' is the definition.
(a fishing rod)
'in river oder' is the wordplay.
'in' says the answer is hidden in the clue.
'ROD' is hidden within 'river oder'.
(Other definitions for rod that I've seen before include "See 13" , "Stick - bar" , "that most anglers use" , "Wand - fishing stick" , "Imperial measure" .)