The most common and most likely answer to this crossword clue is the 5 letter word ROOMY
R
O
O
M
Y
More clues leading to the result ROOMY
- Large track which cattle go back inside
- Little marsupial? Gosh, it's big!
- Heath brought up on foremost of yachts, very spacious
- Capacious jumper, wow!
- Big old footballing boy keeping order
- Small jumper from Australia? Wow, certainly big enough!
- Writing up moor? Yes, primarily spacious
- Unknown wild area to the north offering lots of space
- Little jumper: for yours truly ample
- Spacious yacht’s first to tie up, heading north
Buddy explains!

The straight part
We know that "big" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case big = roomy.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 ROOMY mean?
ROOMY noun- A roommate.
- Spacious, expansive, comfortable.