Truck even has somewhere to sleep (7)

I believe the answer is:

flatbed

I'm a little stuck... Click here to teach me more about this clue!

'truck even has somewhere to sleep' is the definition.
I can't judge whether this defines the answer.

'even has somewhere to sleep' is the wordplay.
'even' becomes 'flat' (similar in meaning).
'has' says to put letters next to each other.
'somewhere to sleep' becomes 'bed'.
'flat'+'bed'='FLATBED'

Can you help me to learn more?

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.