The most common and most likely answer to this crossword clue is the 6 letter word CD-ROM
C
D
-
R
O
M
More clues leading to the result CD-ROM
- Democrat’s somehow lost seat astonishingly — one has lots of information
- Doctor put in key order for memory device
- Medic, Dr O’Malley, keeps a collection of computer files
- Commander with honour finds vehicle for storage
- Medium for accessing information, reportedly shabby gypsy
- Dot-commer loses book about storage device
Buddy explains!

The straight part
We know that "one has lots of information" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one has lots of information = cd-rom.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.