Quick food from cans at the weekend (5)
I believe the answer is:
snack
'quick food' is the definition.
'snack' can be an answer for 'food' (snack is a kind of food). I'm not sure about the 'quick' bit.
'from cans at the weekend' is the wordplay.
'from' indicates anagramming the letters (from the letters).
'at' means one lot of letters go next to another.
'the weekend' becomes 'k' (I've seen this in other clues).
'cans' with letters rearranged gives 'snac'.
'snac'+'k'='SNACK'
Can you help me to learn more?
(Other definitions for snack that I've seen before include "Quick bite to eat" , "Light bite" , "Small or huried meal" , "(Eat) a light meal" , "fast food" .)