The most common and most likely answer to this crossword clue is the 4 letter word TRAM
T
R
A
M
More clues leading to the result TRAM
- Streetcar has clipped hobo
- Recalled somewhere to sell vehicle
- Passenger vehicle coming from market overturned
- Vagrant dropping penny in streetcar
- Streetcar runs behind time in the morning
- Vehicle in trading centre heading north
- Upmarket transport
- Transport first of modern paintings around
- What’s needed to ride around Melbourne, primarily
- Vehicle that runs all morning at outset
Buddy explains!

The straight part
We know that "Streetcar" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case streetcar = tram.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 TRAM mean?
TRAM noun- A passenger vehicle for public use that runs on tracks in the road (called a streetcar or trolley in North America).
- A similar vehicle for carrying materials.
- A people mover.
- An aerial cable car.
- A train with wheels that runs on a road; a trackless train.
- A car on a horse railway or tramway (horse trams preceded electric trams).
- The shaft of a cart.
- One of the rails of a tramway.
- To operate, or conduct the business of, a tramway.
- To travel by tram.
- To transport (material) by tram.
- To align a component in mechanical engineering or metalworking, particularly the head of a drill press.
- A silk thread formed of two or more threads twisted together, used especially for the weft, or cross threads, of the best quality of velvets and silk goods.