The most common and most likely answer to this crossword clue is the 7 letter word ABSENCE
A
B
S
E
N
C
E
More clues leading to the result ABSENCE
- Want what the attendant doesn’t have
- A Bishop observed to be half-hearted attracts church attendance? No!
- Bishop interrupts dodgy seance for failure to show presence?
- Want ratings, therefore, for Eastenders
- Scene changed with sailor getting vacancy
- Can bees suffer want?
- Cab seen, unusually: it’s a scarcity
- Expert admitting Ben’s troubled by non-attendance
- The attendant’s not responsible for it
- Lack what makes one conspicuous
Buddy explains!

The straight part
We know that "a scarcity" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a scarcity = absence.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 ABSENCE mean?
ABSENCE noun- A state of being away or withdrawn from a place or from companionship; the period of being away.
- Failure to be present where one is expected, wanted, or needed; nonattendance; deficiency.
- Lack; deficiency; nonexistence.
- Inattention to things present; abstraction (of mind).
- Temporary loss or disruption of consciousness, with sudden onset and recovery, and common in epilepsy.
- Lack of contact between blades.