The most common and most likely answer to this crossword clue is the 4 plus 2 letter word PULL IN
I've seen this crossword clue in The Guardian
P
U
L
L
I
N
More clues leading to the result PULL IN
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The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PULL IN mean?
PULL IN noun- A rest stop; a place at the side of a road where drivers can rest.