The most common and most likely answer to this crossword clue is the 7 letter word BIDDING
I've seen this crossword clue in The Daily Telegraph
B
I
D
D
I
N
G
More clues leading to the result BIDDING
Buddy explains!

The straight part
We know that "a feature of bridge" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a feature of bridge = bidding.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 BIDDING mean?
BIDDING verb- To issue a command; to tell.
- To invite; to summon.
- To utter a greeting or salutation.
- To make an offer to pay or accept a certain price.
- To offer as a price.
- To make an attempt.
- To announce (one's goal), before starting play.
- To proclaim (a bede, prayer); to pray.
- That which one is bidden to do; a command.
- The act of placing a bid.