The most common and most likely answer to this crossword clue is the 7 letter word GROSSER
G
R
O
S
S
E
R
Buddy explains!
The straight part
We know that "Bigger" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bigger = grosser.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 GROSSER mean?
GROSSER adjective- (of behaviour considered to be wrong) Highly or conspicuously offensive.
- (of an amount) Excluding any deductions; including all associated amounts.
- Seen without a microscope (usually for a tissue or an organ); at a large scale; not detailed.
- Causing disgust.
- Lacking refinement in behaviour or manner; offending a standard of morality.
- (of a product) Lacking refinement; not of high quality.
- (of a person) Heavy in proportion to one's height; having a lot of excess flesh.
- Not sensitive in perception or feeling.
- Difficult or impossible to see through.
- Easy to perceive.
- (in combination) A film, etc. that grosses a certain amount of money.