A nut in a rope canoe (5)
I believe the answer is:
pecan
'a nut' is the definition.
(type of nut)
'in a rope canoe' is the wordplay.
'in' indicates a hidden word.
'PECAN' is hidden in the letters of 'rope canoe'.
(Other definitions for pecan that I've seen before include "Nut with sweet oily kernel" , "Walnut-like nut" , "Nut of American hickory tree" , "Species of hickory - edible nut" , "Nut tree of the southern United States and Mexico" .)