Cryptic crossword clue
Administrative trainee covering rent by son accepts new tenancy 7

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

A
T
T
O
R
N
S

Buddy explains!

The straight part
We know that "accepts new tenancy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case accepts new tenancy = attorns.
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 ATTORNS mean?

ATTORNS verb
  1. To transfer one's obligations from a person to another person.
  2. To consent to the transfer of one's obligations as tenant under a lease to a new landlord.
  3. To acknowledge the jurisdiction of (a particular court) over one's dispute.

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