A basket you can pull right in (4)
I believe the answer is:
trug
'a basket' is the definition.
(I've seen this before)
'pull right in' is the wordplay.
'pull' becomes 'tug' (tug is a kind of pull).
'right' becomes 'r' (common abbreviation).
'in' means one lot of letters goes inside another.
'tug' going around 'r' is 'TRUG'.
'you can' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for trug that I've seen before include "Fruit-basket" , "Small boat" , "Shallow oblong wooden basket" , "Basket to use in 17" , "Shallow wooden basket for gardeners" .)