The most common and most likely answer to this crossword clue is the 9 letter word LEFTOVERS
I've seen this crossword clue in The Guardian
L
E
F
T
O
V
E
R
S
More clues leading to the result LEFTOVERS
- Engulfed by flames, amphibian remains
- Penning English paper, an item remains
- Unwanted parts of European newspaper hoarded by enthusiasts
- . Remains found in sinister elements of test?
- Refuse sinister deliveries
- Balls follows Labour Party
- Split bowler’s deliveries as “extras“
- Remains with port on top of sideboard
- Felt differently concerning small amounts of surplus food
- Cooked for svelte – resulting in this?
Buddy explains!
The straight part
We know that "remains thereof" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case remains thereof = leftovers.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 LEFTOVERS mean?
LEFTOVERS noun- Something left behind; an excess or remainder.
- (chiefly in the plural, usually of food) Remaining after a meal is complete or eaten for a later meal or snack.