Freeloaders switching how clothes are stored (7-2)
I believe the answer is:
hangers-on
'freeloaders' is the definition.
(both can mean people taking advantage of others)
I can't explain the rest of the clue.
(Other definitions for hangers-on that I've seen before include "Sycophantic associates" , "Minions" , "Persistent (and annoying) companions" , "Sycophants, unwanted followers" , "Sycophantic followers - dependants" .)