The most common and most likely answer to this crossword clue is the 8 letter word CONVEYOR
C
O
N
V
E
Y
O
R
Buddy explains!

The straight part
We know that "type of belt" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case type of belt = conveyor.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 CONVEYOR mean?
CONVEYOR noun- A person that conveys, transports or delivers.
- Anything that conveys, transports or delivers.
- A mechanical arrangement for transporting material or objects, generally over short or moderate distances, as from one part of a building to another.