Admire run -- scrambled single (9)
I believe the answer is:
unmarried
'single' is the definition.
(I've seen this before)
'admire run scrambled' is the wordplay.
'scrambled' indicates an anagram.
'admire'+'run'='admirerun'
'admirerun' anagrammed gives 'UNMARRIED'.
(Other definitions for unmarried that I've seen before include "Status of a bachelor" , "Single in terms of partnership" , "Not yet wed" .)