The most common and most likely answer to this crossword clue is the 7 letter word REPASTS
R
E
P
A
S
T
S
Buddy explains!
The straight part
We know that "Collations" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case collations = repasts.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 REPASTS mean?
REPASTS noun- A meal.
- The food eaten at a meal.
- To supply food to; to feast.
- To take food.