The most common and most likely answer to this crossword clue is the 6 letter word VELCRO
I've seen this crossword clue in The Daily Telegraph
V
E
L
C
R
O
More clues leading to the result VELCRO
- Trademarked material in novel, cross-referenced
- Invention that secures part of level crossing
- Cover tailored clothing line in clingy material
- Unravel crossword in which there’s something to get stuck on
- New love takes credit for providing a secure bond
- Fastening material from level crossing
- Sticky stuff seen in novel crop
- Adhesive material bird used endlessly after money handed over
- Novel crossword featuring loopy material
- Fastening material concealed by level crossing
Buddy explains!
The straight part
We know that "that makes things fast" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case that makes things fast = velcro.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 VELCRO mean?
VELCRO verb- To fasten with Velcro.