Residence in Yosemite (4)
I believe the answer is:
semi
'residence' is the definition.
(I've seen this before)
'in yosemite' is the wordplay.
'in' says the answer is hidden in the clue.
'SEMI' can be found hidden inside 'yosemite'.
(Other definitions for semi that I've seen before include "Half (pfx)" , "Type of house (UK) - type of truck (US)" , "eg Half a house" , "House joined to another" , "House attached to one other" .)