Stuck with quite a few clues.
26a, subjects to a proficiency test (8)ltrs.
E?a?i?e? Is is examiner of examinee?
36d your're welcome (3,2,3) ltrs
N?t ?t. ?l? Is it not at all?
113a white lie (7) ltrs
?n?r?k?
104a inflicting pain on (9) ltrs
??????ing.