… and others are coming up behind (2,2)
I believe the answer is:
et al
'and others' is the definition.
(short for 'et alia', 'and others' in Latin)
'coming up behind' is the wordplay.
'coming up' is a reversal indicator (in a down clue, letters go up).
'behind' becomes 'late' (as in behind schedule).
'late' back-to-front is 'ET AL'.
'are' is the link.
(Other definitions for et al that I've seen before include "And the rest (Lat. abbr.)" , "Latin notation meaning and others" , "And others (abbrev.)" , "And others (abbr)" , "'And others, to the old Romans (2,2)'" .)