Cryptic crossword clue
More perverted relations with heartless killer 7

The most common and most likely answer to this crossword clue is the 7 letter word KINKIER

I've seen this crossword clue in Financial Times
K
I
N
K
I
E
R

Buddy explains!

The straight part
We know that "More perverted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case more perverted = kinkier.
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 KINKIER mean?

KINKIER adjective
  1. Full of kinks; liable to kink or curl.
  2. Marked by unconventional sexual preferences or behavior, as fetishism, sadomasochism, and other sexual practices.
  3. Queer; eccentric; crotchety.

Latest crossword clues with full explanations