Look on computer key for star (6)
I believe the answer is:
altair
'star' is the definition.
(I've seen this before)
'look on computer key' is the wordplay.
'look' becomes 'air' (I've seen this before).
'on' is a charade indicator (letters next to each other).
'computer key' becomes 'alt' (I can't justify this - if you can you should believe this answer much more).
'air' put after 'alt' is 'ALTAIR'.
'for' is the link.
Can you help me to learn more?
(Other definitions for altair that I've seen before include "A trial (anag) - star" , "Heavenly body" , "Member of Eagle family" , "Bright star; lariat (anag.)" , "First-magnitude star" .)