The most common and most likely answer to this crossword clue is the 10 letter word REPRESSION
I've seen this crossword clue in The Guardian
R
E
P
R
E
S
S
I
O
N
More clues leading to the result REPRESSION
Buddy explains!

The straight part
We know that "control" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case control = repression.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 REPRESSION mean?
REPRESSION noun- The act of repressing; state of being repressed.
- The involuntary rejection from consciousness of painful or disagreeable ideas, memories, feelings, or impulses.