Idle type finished around mid-afternoon (5)
I believe the answer is:
drone
'idle type' is the definition.
(I've seen this before)
'finished around mid-afternoon' is the wordplay.
'finished' becomes 'done' (both can mean completed).
'around' indicates putting letters inside.
'mid' indicates the central letters (mid- can mean the middle of something).
The middle letter of 'afternoon' is 'r'.
'done' placed around 'r' is 'DRONE'.
(Other definitions for drone that I've seen before include "Queen's mate" , "Idler or male honey-bee" , "Talk boringly; a parasite" , "boring speaker" , "Aircraft operated by remote control" .)