8d Ewer (f)ewer.
other 2 were answered here, http://www.crosswordsolver.org/forum/336997/offset/0
as reefer and tee off.
i'd like to know what the clue was to the later. i don't think much of the reefer clue.
...although it is my knowledge that was lacking rather than the clue. i'd never heard of reefer as a refrigerated thingy and advert=refer seemed a bit tenuous to me but... http://tinyurl.com/cufxrmd