The most common and most likely answer to this crossword clue is the 7 letter word GASKETS
G
A
S
K
E
T
S
Buddy explains!
The straight part
We know that "found in cookers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case found in cookers = gaskets.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 GASKETS mean?
GASKETS noun- A length of rope used for reefing a sail, or holding a stowed sail in place.
- Any mechanical seal that serves to fill the space between two objects, generally to prevent leakage between the two objects while under compression.
- A material which may be clamped between faces and acts as a static seal. Gaskets may be cut, formed, or molded to the desired configuration.
- Any of a wide variety of seals or packings used between matched machine parts or around pipe joints to prevent the escape of a gas or fluid.