The most common and most likely answer to this crossword clue is the 11 letter word PROCUREMENT
I've seen this crossword clue in The Daily Telegraph
P
R
O
C
U
R
E
M
E
N
T
Buddy explains!

The straight part
We know that "Obtaining" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case obtaining = procurement.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 PROCUREMENT mean?
PROCUREMENT noun- The purchasing department of a company.
- The act of procuring or obtaining; obtainment; attainment.
- Efficient contrivance; management; agency.