To some extent get along with other people (2,2)
I believe the answer is:
et al
'with other people' is the definition.
(short for 'et alia', 'and others' in Latin)
'to some extent get along' is the wordplay.
'to some extent' indicates a hidden word (I've seen 'extent of' mean this (I've seen this in other clues)).
'ET AL' is hidden within 'get along'.
(Other definitions for et al that I've seen before include "Latin notation meaning and others" , "Latin notation - late for others" , "And others (abbrev.)" , "And the rest, to the old Romans" , "'And others, to the old Romans (2,2)'" .)