The most common and most likely answer to this crossword clue is the 5 letter word HORDE
I've seen this crossword clue in The Times
H
O
R
D
E
More clues leading to the result HORDE
- Crowd in store by the sound of it
- Wandering tribe, debauched by the sound of it
- Mob store, reportedly
- Pack put away, we hear
- Crowd in garden on either side of road
- Large company's earth mover crossing road
- Mob's stash picked up
- Army in hellish ordeal
- Crowd in anguish or delight?
- Pack lunch or deliver sandwiches
Buddy explains!

The straight part
We know that "Large company" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case large company = horde.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 HORDE mean?
HORDE noun- A wandering troop or gang; especially, a clan or tribe of a nomadic people (originally Tatars) migrating from place to place for the sake of pasturage, plunder, etc.; a predatory multitude.
- A large number of people.
- To travel en masse, to flock