The most common and most likely answer to this crossword clue is the 8 letter word HAIRPINS
I've seen this crossword clue in Financial Times
H
A
I
R
P
I
N
S
More clues leading to the result HAIRPINS
Buddy explains!
The straight part
We know that "Sharp turns/needed to secure locks" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sharp turns/needed to secure locks = hairpins.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 HAIRPINS mean?
HAIRPINS noun- A pin or fastener for the hair.
- A kind of ribozyme; hairpin ribozyme.
- A very tight bend in a road.
- An elongated v-shaped sign placed underneath a staff to indicate a crescendo