Tend, incline (4)
I believe the answer is:
lean
This clue is a double definition.
'tend' is the first definition.
(I know that tend can be written as lean)
'incline' is the second definition.
(I know that incline is a more specific form of lean)
(Other definitions for lean that I've seen before include "Of meat, with little or no fat" , "unremunerative" , "What Jack Sprat's wife couldn't eat" , "Without excess flesh" , "Slight - incline" .)