Note small car parked on motorway (5)
I believe the answer is:
minim
'note' is the definition.
(type of musical note)
'small car parked on motorway' is the wordplay.
I cannot quite understand how this works, but
'small' could be 'mini' (short for miniature) and 'mini' is present in the answer.
'motorway' could be 'm' (as in motorway names - M1, M4 etc) and 'm' is located in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for minim that I've seen before include "Short note" , "Quarter of a breve" , "Musical note - small amount of liquid" , "note or > dose" , "Note of two crotchets" .)