Lean over (4)
I believe this is a double definition.
'lean' is the first definition.
(similar in meaning)
'over' is the second definition.
(I've seen this before)
(Other definitions for spare that I've seen before include "Excess to requirements" , "This tyre around the middle is fat" , "show mercy" , "This tyre is for emergencies" , "slit at top of trousers in Scotland" .)
(Other definitions for bend that I've seen before include "Form a curve" , "submit" , "Arc" , "Crook" , "Shape into a curve" .)