Clue: Grabbed one McDonald's in a hurry (9)
Answer: IMPRESSED
Explanation: Grabbed one McDonald's in a hurry (9)
I ("one") + M (McDonalds) + PRESSED ("in a hurry") 
*I assume that M + the "Golden Arches" logo of McDonalds (a large yellow M), but I haven't come across this before. Purists will no doubt complain that it isn't in Chambers, but it is such an ubiquitous sign that I think it's OK.