Stuck on the last two and google isn't helping.
11A: Become less pleasant (4,4) ??R? S?U?
4D: ____ battery, expired (4) ?L?? (The last ? is the first of 11A above)...
Need some help please. 9D: Celebrate with bunting (3,3,5,3) P?T ??? F?A?S ??? (I thought it was PUT THE FLAGS OUT but that leaves me with H for the next clue and U for the last so not sure.) 16A:...