The most common and most likely answer to this crossword clue is the 11 letter word SYNCHRONISE
I've seen this crossword clue in The Times
S
Y
N
C
H
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Buddy explains!

The straight part
We know that "Get time together" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case get time together = synchronise.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 SYNCHRONISE mean?
SYNCHRONISE verb- To cause two or more events or actions to happen at exactly the same time or same rate, or in a time-coordinated way.
- To set (a clock or watch) to display the same time as another.
- To cause (a set of files, data, or settings) on one computer or device to be (and try to remain) the same as on another.
- (of inanimate entities) To agree, be coordinated with, or complement well.
- To coordinate or combine.