Missing

9 clues
Lost
Absent
Part of MIA
Longing to see
Nowhere to be found
Lost, according to this theme
Not where it's expected to be
What this grid's big symbol is, Across and Down
Like the letter E in this entire puzzle's solution
Similar answers:
Abasing
Abbashitsingle
Abeamis
Abnersingleday
Abrasing
Abusing
Accusing
Accusingzingers
Acdcsingerscott
Actsingoodfaith
Addressing
Admis
Admissible
Admission
Admissionaccomplished
Admissioncharge
Admissioncontrol
Admissionfreeit
Admissionimpossible
Admissionofquilt