The most common and most likely answer to this crossword clue is the 7 letter word BROTHEL
I've seen this crossword clue in The Guardian
B
R
O
T
H
E
L
More clues leading to the result BROTHEL
- Lay person mostly with bit of lust here
- Relative nearly left establishment that struggles to maintain social distancing
- Pay here for the other comrade, parting with last pound
- Taking wrong final direction, monk comes to oldest professional establishment?
- Relative on the prowl finally finding house of ill repute
- Monk abruptly left sinful house
- Sibling loses right to lobby for bordello
- Seedy hotel with bedroom in front becomes house of ill-repute
- Monk briefly bared all in bawdy-house
Buddy explains!

The straight part
We know that "Pay here for the other" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pay here for the other = brothel.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 BROTHEL mean?
BROTHEL noun- A house of prostitution.
- A wretch; a depraved or lewd person.