The most common and most likely answer to this crossword clue is the 6 letter word HIPPED
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The straight part
We know that "particular roof type" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case particular roof type = hipped.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 HIPPED mean?
HIPPED adjective- Having hips or a feature resembling hips.
- To use one's hips to bump into someone.
- To throw (one's adversary) over one's hip ("cross-buttock").
- To dislocate or sprain the hip of, to fracture or injure the hip bone of (a quadruped) in such a manner as to produce a permanent depression of that side.
- To make with a hip or hips, as a roof.
- To inform, to make knowledgeable.
- To use one's hips to bump into someone.
- To throw (one's adversary) over one's hip ("cross-buttock").
- To dislocate or sprain the hip of, to fracture or injure the hip bone of (a quadruped) in such a manner as to produce a permanent depression of that side.
- To make with a hip or hips, as a roof.
- To inform, to make knowledgeable.
- Aware, informed.
- (with on) Interested.
- Depressed.