The most common and most likely answer to this crossword clue is the 5 letter word FORTY
F
O
R
T
Y
More clues leading to the result FORTY
- Singles that are old: at least 90
- When life begins to be a bit like a stronghold?
- Before end of rally, keep score – and again?
- Keep young primarily when life begins, they say
- Try on manoeuvres adopted by superior gold-digger
- Number of thieves favouring heartless thievery
- Middle-aged and single
- When life begins to assume anorder
- Single number?
- Foxlike, reveals when the Enigma machine was broken
Buddy explains!

The straight part
We know that "Yank regularly found in wild frontier?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case yank regularly found in wild frontier? = forty.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 FORTY mean?
FORTY noun- A bottle of beer containing forty fluid ounces.
- The cardinal number occurring after thirty-nine and before forty-one.