The most common and most likely answer to this crossword clue is the 7 letter word POACHER
P
O
A
C
H
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R
More clues leading to the result POACHER
- A PC hero disturbed thief
- Who might steal eggs and cook them?
- One who steals fish, say, and simmers it in water?
- In ads, price on asking – dear for French cooker
- Hear cop shot criminal on estate?
- Breakfast chef possibly criminal
- Breakfast cook who intrudes on another’s territory?
- A cop bust that female thief
- Cooking aid for the trespassing hunter's fish
- Who might steal eggs — and cook them?
Buddy explains!

The straight part
We know that "thief" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case thief = poacher.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 POACHER mean?
POACHER noun- A person who trespasses in order to take game illegally, one who poaches; a person who illegally takes animals or plants from the wild.
- A vessel with shallow cuplike compartments in which eggs are cooked over boiling water
- An attacker with good movement inside the penalty box, see Wikipedia:Goal poacher.
- Any of type of elongated fish in the family Agonidae, also known as alligatorfish, starsnout, hooknose and rockhead.
- The American wigeon.