The most common and most likely answer to this crossword clue is the 3 plus 3 plus 4 letter word ALL THE SAME
I've seen this crossword clue in The Daily Telegraph
A
L
L
T
H
E
S
A
M
E
More clues leading to the result ALL THE SAME
- Still like clones?
- There’s a lack of variety, still
- … none distinguished, anyway
- Nevertheless, shows no distinctive qualities
- Still a lack of variety
- Everyone’s identical anyway
- Everybody hates me dithering even so
- Nevertheless everyone’s identical
- As are a number of clones, despite what you say
- Notwithstanding lacking in variety
Buddy explains!

The straight part
We know that "Notwithstanding" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case notwithstanding = all the same.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.