The most common and most likely answer to this crossword clue is the 4 plus 2 letter word LIKE SO
I've seen this crossword clue in The Guardian
L
I
K
E
S
O
More clues leading to the result LIKE SO
Buddy explains!
The straight part
We know that "in that way" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in that way = like so.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.