Cryptic crossword clue
Grass residue is found in two hotels 7

The most common and most likely answer to this crossword clue is the 7 letter word HASHISH

I've seen this crossword clue in The Daily Telegraph
H
A
S
H
I
S
H


Buddy explains!

The straight part
We know that "Grass" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case grass = hashish.
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 HASHISH mean?

HASHISH noun
  1. The leaves and tender parts of the Indian hemp plant (which are intoxicating), which are dried for either chewing or smoking.
  2. A cannabis extract.
  3. Marijuana generally.

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