The most common and most likely answer to this crossword clue is the 7 letter word MAMMOTH
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More clues leading to the result MAMMOTH
- Huge insect covers a small distance
- Gigantic mummy, a creature of the night
- A distance covered by insect is huge
- Large insect found behind mother
- Huge insect on mother, beginning to move
- Large insect covering a short distance
- Huge insect chases old lady in Newcastle
- Giant embalms oddly deficient insect
- Huge insect covering a short distance
- Bullets in time dropping on giant
Buddy explains!

The straight part
We know that "bulky" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bulky = mammoth.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 MAMMOTH mean?
MAMMOTH noun- Any species of the extinct genus Mammuthus, of large, usually hairy, elephant-like mammals with long curved tusks and an inclined back, which became extinct with the last retreat of ice age glaciers during the late Pleistocene period, and are known from fossils, frozen carcasses, and Paleolithic cave paintings found in North America and Eurasia.
- A mastodon.
- Something very large of its kind.
- Comparable to a mammoth in its size; very large, huge, gigantic.