The most common and most likely answer to this crossword clue is the 5 letter word SENNA
I've seen this crossword clue in Independent
S
E
N
N
A
More clues leading to the result SENNA
- Nitrogen close to ocean absorbed by marine plant
- A woman’s set up supplying laxative
- Plant, something brownish-yellow I uprooted
- Former driver about to leave Riviera town, heading north
- Lady’s laid up? This should get her going
- Society woman turning to laxative
- None, oddly, found in Mediterranean plant
- Shrub in middle of canal repeatedly swamped by water
- Girl's climbing plant
- Queen’s picked up laxative for driver
Buddy explains!
The straight part
We know that "driver" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case driver = senna.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 SENNA mean?
SENNA noun- Any of several plants of the tribe Cassieae, especially those of the genera Cassia and Senna, whose leaves and pods are used as a purgative and laxative.
- The dried leaves or pods of these plants (especially of Senna alexandrina, syn. Cassia angustifolia or Cassia acutifolia), used medicinally.
- Senna glycoside, a laxative.