The most common and most likely answer to this crossword clue is the 7 letter word STYPTIC
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More clues leading to the result STYPTIC
Buddy explains!

The straight part
We know that "drawing together" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drawing together = styptic.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 STYPTIC mean?
STYPTIC noun- A substance used for styptic results.
- Bringing about contraction of tissues; harsh, raw, austere.
- (by extension) That stops bleeding.