The most common and most likely answer to this crossword clue is the 7 letter word READOUT
I've seen this crossword clue in The Times
R
E
A
D
O
U
T
Buddy explains!
The straight part
We know that "data retrieval" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case data retrieval = readout.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 READOUT mean?
READOUT noun- A display that presents numerical data.
- An account of the topics discussed in a meeting, especially in diplomatic or political contexts.