The most common and most likely answer to this crossword clue is the 10 letter word AUCTIONEER
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result AUCTIONEER
- One curate I trained who has lots to deal with
- One who sells essence of rum, mixed with ice or neat
- He sells at a knock-down price
- He sells gold coins, primarily one kept in bank
- One with lots to offer?
- Sell last pieces of fine Japanese silver? He would.
- A truce I arranged, including individual who has lots to offer?
- He’ll let you have lots at knock-down prices
- Job for someone with lots to offer
- One responsible for lots being sold?
Buddy explains!

The straight part
We know that "One with lots to offer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one with lots to offer = auctioneer.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 AUCTIONEER mean?
AUCTIONEER noun- A person who conducts an auction on behalf of a vendor, taking bids to find the best price for the vendor.
- To sell at an auction; to auction.