The most common and most likely answer to this crossword clue is the 7 letter word POPULAR
I've seen this crossword clue in The Times
P
O
P
U
L
A
R
More clues leading to the result POPULAR
- Common tree seen around University
- Much-loved dad, initially up late and reading
- Much-loved tree inspiring you, ultimately
- Accessible university in East End district
- Backing up, very cold outside and in
- Non-technical university in part of east London
- Favourite cold drinks turned up
- Hot? Tree will provide shade for you!
- Well-liked university in London area
- 19 in old Ford
Buddy explains!

The straight part
We know that "Common" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case common = popular.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 POPULAR mean?
POPULAR noun- A person who is popular, especially at a school.
- (chiefly in the plural) An inexpensive newspaper with wide circulation.
- A member of the Populares
- Common among the general public; generally accepted.
- Concerning the people; public.
- Pertaining to or deriving from the people or general public.
- Of low birth, not noble; vulgar, plebian.
- Aimed at ordinary people, as opposed to specialists etc.; intended for general consumption.
- Cultivating the favour of the common people.
- Liked by many people; generally pleasing, widely admired.
- Adapted to the means of the common people; cheap.