The most common and most likely answer to this crossword clue is the 7 letter word PRAYERS
I've seen this crossword clue in The Daily Telegraph
P
R
A
Y
E
R
S
Buddy explains!
The straight part
We know that "Collects" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case collects = prayers.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 PRAYERS mean?
PRAYERS noun- A practice of communicating with one's God.
- The act of praying.
- The specific words or methods used for praying.
- A meeting held for the express purpose of praying.
- A request; a petition.
- (mostly in negative constructions) The remotest hope or chance.
- One who prays.