The most common and most likely answer to this crossword clue is the 6 letter word HATPIN
I've seen this crossword clue in The Times
H
A
T
P
I
N
More clues leading to the result HATPIN
- I’m sharp, but would I ever make a fast bowler?
- Security measure for Panama running through locks?
- Paint brush finally adapted into a device holding pillbox in place
- It secures a superior item for ladies
- ‘Crazy’ path through what fixes cloche’s position?
- Evidence of security for capital cover
- Does it secure tile to shingle?
- Security device of no use to the distressed!
- A thin peg, originally designed,
Buddy explains!

The straight part
We know that "Security measure for Panama running through locks?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case security measure for panama running through locks? = hatpin.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 HATPIN mean?
HATPIN noun- A long straight pin, often with a decorative head, used to secure a woman's hat to her hair.