The most common and most likely answer to this crossword clue is the 5 letter word TULSA
T
U
L
S
A
More clues leading to the result TULSA
- A US lot losing heart unfortunately in Oklahoman city
- A trollop returns to American city
- A disreputable girl back in OK place
- A slovenly type raised in US city
- City that’s beginning to get large in America
- US city’s upside down topping of apple tart
- Source of apple tart turned up in US city
- Turned around drab Australian city
- Start to tour America, taking in large city
- Introduction to Texas, America, touring large oil industry centre
Buddy explains!

The straight part
We know that "Oklahoman city" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case oklahoman city = tulsa.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.