Worried about novice and others (2,2)
I believe the answer is:
et al
'and others' is the definition.
(I've seen this before)
'worried about novice' is the wordplay.
'worried' becomes 'ate' (I've seen this before).
'about' says the letters should be written in reverse.
'novice' becomes 'l' (abbreviation for Learner e.g. on UK cars).
'ate' in reverse letter order is 'eta'.
'eta'+'l'='ET AL'
(Other definitions for et al that I've seen before include "Latin abbreviation meaning 'and others'" , "And others (abbrev.)" , "And the rest (Lat. abbr.)" , "Latin notation meaning and others" , "Latin notation - late for others" .)