2d. Tube not crushed enough?
4a. Shirt not like another garment (5)
5d. Reflection of a popular girl (4)
6d. Boasts about previously minute gulf
16a. Pledge to reverse in a German car (7)
20a. Country flag overly creased, in part (7) ???t???
26a. Birds popularise wings with reason (6) ??W???