Vehicles separated by a group of people, travelling in single file (7)
I believe the answer is:
caravan
'file' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'vehicles separated by a group of people travelling in single' is the wordplay.
I cannot quite see how this works, but
'a' could be 'an' and 'an' is found in the answer.
'single' could be 'a' and 'a' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for caravan that I've seen before include "Towed accommodation" , "Towed home" , "Group travelling together across a desert in single file" , "Towed vehicle" , "Towable home" .)