The most common and most likely answer to this crossword clue is the 6 letter word COPPER
I've seen this crossword clue in The Times
C
O
P
P
E
R
More clues leading to the result COPPER
- Police officer, one who manages to bear pressure
- Coin word for policeman?
- Coin in large pot
- One managing to contain phosphorus in large vessel
- Penny, PC
- Manager retains power element
- Reliable policeman proved successful arresting pair of terrorist leaders
- Policeman - one managing to absorb pressure
- Officer element
- One getting 2p?
Buddy explains!

The straight part
We know that "Coin/word for policeman?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case coin/word for policeman? = copper.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 COPPER mean?
COPPER noun- A reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol Cu, and atomic number 29.
- The reddish-brown colour/color of copper.
- Any of various specialized items that are made of copper, where the use of copper is either traditional or vital to the function of the item.
- Any of various lycaenid butterflies with copper-coloured upperwings, especially those of the genera Lycaena and Paralucia.
- To sheathe or coat with copper.
- Made of copper.
- Having the reddish-brown colour/color of copper.
- (law enforcement) A police officer.