Work as a dentist or doctor with the sick (5)
I believe the answer is:
drill
'work as a dentist' is the definition.
I can't tell whether this defines the answer.
'doctor with the sick' is the wordplay.
'doctor' becomes 'dr' (abbreviation).
'with' is a charade indicator (letters next to each other).
'the sick' becomes 'ill' (I've seen this in another clue).
'dr'+'ill'='DRILL'
'or' acts as a link.
Can you help me to learn more?
(Other definitions for drill that I've seen before include "Tool for boring holes" , "Exercise - bore a hole" , "Train (by repeated practice)" , "(Correct) procedure" , "Rehearsal of the procedure to be followed in an emergency" .)