The most common and most likely answer to this crossword clue is the 7 letter word BARONET
B
A
R
O
N
E
T
More clues leading to the result BARONET
- Soul singer needing backing for a title
- Ban on alien hereditary title
- Weapon, right for unknown minor noble
- Titled man’s circle in London borough
- Prevent individual associated with Tory leader getting title
- Stick figure ending on portrait, titled individual
- Singer, a bass, lifted title …
- Titleholder, excluding a single Tory leader
- Scholar raised voice — “Sir!”
- Noble start to Anne Bronte novel
Buddy explains!

The straight part
We know that "hereditary title" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case hereditary title = baronet.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 BARONET mean?
BARONET noun- A hereditary title, below a peerage and senior to most knighthoods, entitling the bearer to the titular prefix "Sir" (for men) or "Dame" (for women) which is used in conjunction with the holder's Christian name. It is inheritable, usually by the eldest son, although a few baronetcies can also pass through the female line.