She's of some help to a space visitant (5)
I believe the answer is:
ethel
'she's' is the definition.
(I've seen this before)
'some help to a space visitant' is the wordplay.
'some' means to look at the middle letters.
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'a space visitant' becomes 'eth' (I can't explain this - if you can you should believe this answer much more).
The middle letters of 'help' are 'el'.
'el' put after 'eth' is 'ETHEL'.
'of' is the link.
Can you help me to learn more?
(Other definitions for ethel that I've seen before include "Trying not to be seen" , "- Barrymore, actress" , "chapel" , "- Merman, US actress" , "- Merman, US musical comedy star" .)