Loyalty, for example, in partnership (10)
I believe the answer is:
allegiance
'loyalty' is the definition.
(allegiance is a kind of loyalty)
'example in partnership' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'in' indicates putting letters inside.
'partnership' becomes 'alliance' (I've seen this before).
'eg' going into 'alliance' is 'ALLEGIANCE'.
'for' acts as a link.
(Other definitions for allegiance that I've seen before include "duty" , "Fidelity" , "Loyalty to a group or cause" , "Loyalty (to a superior)" , "commitment to a cause" .)