Last order has new inclination (5)
I believe the answer is:
slant
'inclination' is the definition.
(slant is a kind of inclination)
'last order has new' is the wordplay.
'order' indicates anagramming the letters.
'has' indicates putting letters inside.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'last' with letters rearranged gives 'slat'.
'slat' going around 'n' is 'SLANT'.
(Other definitions for slant that I've seen before include "Slope - bias" , "Inclination" , "Angle; incline" , "Lie obliquely" , "Lean, point of view" .)