The most common and most likely answer to this crossword clue is the 8 letter word HOLD-UPS
I've seen this crossword clue in The Guardian
H
O
L
D
-
U
P
S
Buddy explains!
The straight part
We know that "Acts of robbery/delays" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case acts of robbery/delays = hold-ups.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 HOLD-UPS mean?
HOLD-UPS noun- A delay or wait.
- A robbery at gunpoint.
- The holding back of a card that could win a trick in order to use it later.
- (in the plural) Women's stockings designed to be worn without suspenders.
- Women's stockings designed to be worn without suspenders.