The most common and most likely answer to this crossword clue is the 5 letter word PAGAN
I've seen this crossword clue in The Daily Telegraph
P
A
G
A
N
More clues leading to the result PAGAN
- Heathen taking cooking vessel across Georgia
- Heathen commander invading borders of Pakistan
- One doesn't believe prospector's tool will secure silver
- Some propagandist not operating in good faith?
- Heathen to search for gold
- Heathen page once more dropping one
- Silver found in cookware is pre-Christian
- Priest once more saving one unbeliever
- Infidel beginning to practise once more after I left
- Having no faith in search for metals, including silver
Buddy explains!

The straight part
We know that "heathen" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case heathen = pagan.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 PAGAN mean?
PAGAN noun- A person not adhering to a main world religion; a follower of a pantheistic or nature-worshipping religion.
- (by extension) An uncivilized or unsocialized person.
- (by extension) An unruly, badly educated child.
- Relating to, characteristic of religions that differ from main world religions.
- (by extension) Savage, immoral, uncivilized, wild.