The most common and most likely answer to this crossword clue is the 9 letter word TENDERING
I've seen this crossword clue in The Daily Telegraph
T
E
N
D
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More clues leading to the result TENDERING
Buddy explains!

The straight part
We know that "Offering" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case offering = tendering.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 TENDERING mean?
TENDERING verb- To make tender or delicate; to weaken.
- To feel tenderly towards; to regard fondly or with consideration.
- To work on a tender.
- To offer, to give.
- To offer a payment, as at sales or auctions.
- The offering of a tender, or bid.