The most common and most likely answer to this crossword clue is the 12 letter word ACCOMMODATED
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The straight part
We know that "Given room, perhaps/adapted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case given room, perhaps/adapted = accommodated.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 ACCOMMODATED mean?
ACCOMMODATED verb- To render fit, suitable, or correspondent; to adapt.
- To cause to come to agreement; to bring about harmony; to reconcile.
- To provide housing for.
- To provide with something desired, needed, or convenient.
- To do a favor or service for; to oblige.
- To show the correspondence of; to apply or make suit by analogy; to adapt or fit, as teachings to accidental circumstances, statements to facts, etc.
- To give consideration to; to allow for.
- To contain comfortably; to have space for.
- To adapt oneself; to be conformable or adapted; become adjusted.