The most common and most likely answer to this crossword clue is the 9 letter word ADRENALIN
I've seen this crossword clue in The Times
A
D
R
E
N
A
L
I
N
More clues leading to the result ADRENALIN
- Article about Ireland transformed is rousing stuff
- Hormone turning up one way and another in sodium
- Daniel ran off, stimulated by this?
- An Ireland revitalised – that’s rousing stuff
- Liquid I learn and hormonal secretion
- What raises blood pressure? Democrat in realm reversing nothing
- Article about one way and another to serve up stimulant
- It’s released when one is agitated and in real trouble
- A racket involving kidneys’ secretion
- A secretion troubled lad in ear, to a point
Buddy explains!

The straight part
We know that "rousing stuff" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rousing stuff = adrenalin.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 ADRENALIN mean?
ADRENALIN noun- Epinephrine, the hormone and neurotransmitter.