Regard as a wraithlike spectre (7)
I believe the answer is:
respect
'regard' is the definition.
(synonyms)
'a wraithlike spectre' is the wordplay.
'spectre' anagrams to 'RESPECT'.
Though, I'm unsure how this is indicated.
'as' is the link.
Can you help me to learn more?
(Other definitions for respect that I've seen before include "Deference, obedience" , "Treat with consideration" , "Hold in high regard" , "Admiration or esteem" , "Show honour to" .)