Bore with complaint on way back (5)
I believe the answer is:
drill
'bore' is the definition.
(bore can mean to drill into something)
'with complaint on way back' is the wordplay.
'with' is a charade indicator (letters next to each other).
'complaint on' becomes 'lli' (I can't justify this - if you can you should believe this answer much more).
'way' becomes 'rd' (short for road).
'back' shows that the letters should be reversed in order.
'lli'+'rd' is 'llird'.
'llird' in reverse letter order is 'DRILL'.
Can you help me to learn more?
(Other definitions for drill that I've seen before include "boring one" , "Routine" , "Tool; military training" , "Square-bashing" , "Boring thing" .)