The most common and most likely answer to this crossword clue is the 8 plus 6 letter word SHOPPING CENTRE
I've seen this crossword clue in The Times
S
H
O
P
P
I
N
G
C
E
N
T
R
E
More clues leading to the result SHOPPING CENTRE
- A place for people to give hoods away in the mall?
- It’s bustling at weekend, yet implicitly very quiet
- One place to buy two pianos?
- Excited, gents in chopper leaving mall
- Focus of betrayal for retailers
- Retail location providing criminal information on rugby player
- Mall that provides double parking?
- Commercial building that could be very quiet?
- It implies very quiet place to buy lots
Buddy explains!

The straight part
We know that "Commercial building" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case commercial building = shopping centre.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.