Food wagon overlooking near side of road (4)
I believe the answer is:
tuck
'food' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tuck that I've seen before include "Schoolboy grub like sweets and cakes" , "Friar of Sherwood" , "Food for schoolboys" , "Stitched fold in garment" , "Dart" .)