New spade alone maybe with power to pull up tree (5)
I believe the answer is:
pecan
'tree' is the definition.
(pecan is a kind of tree)
'new spade alone maybe with power to pull up' is the wordplay.
I cannot quite understand how this works, but
'new' could be 'n' (abbreviation as in New Testament NT) and 'n' is found in the answer.
'power' could be 'pe' (P.E. is an example) and 'pe' is located in the answer.
The remaining letters 'ca' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for pecan that I've seen before include "Oval nut of south central United States" , "Smooth pinkish-brown nut, nice in pie" , "of nuts" , "Nut of American hickory tree" , "Edible nut like a smooth walnut" .)