The most common and most likely answer to this crossword clue is the 10 letter word BLUEBONNET
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Buddy explains!
The straight part
We know that "Texan flower" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case texan flower = bluebonnet.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 BLUEBONNET mean?
BLUEBONNET noun- A traditional flat Scottish hat made of blue wool; a blue tam-o'-shanter.
- Someone who wears such a hat; a Scotsman, especially a Scottish soldier.
- Any of several blue flowering plants, especially cornflower, Centaurea cyanus, and plants of the genus Scabiosa.
- A blue Australian parrot, especially Northiella haematogaster.
- Any of several North American species of Lupinus common in the southwestern US, especially Lupinus texensis and Lupinus subcarnosus.