The most common and most likely answer to this crossword clue is the 4 plus 2 letter word USES UP
U
S
E
S
U
P
More clues leading to the result USES UP
- Finishes milk drink
- Gets through customs, then skyward
- Drains in house superfluous
- Exhausts puss interfering with EU
- Squanders benefit on drink
- Completely consumes American and 7 drink
- Goes through customs at university
- Drains American and European drink
- Consumes drink after exercise
- Exhausts cause supercharger’s casing to drop off
Buddy explains!

The straight part
We know that "Gets through" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case gets through = uses up.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.