TV series open about king (4,4)
I believe the answer is:
star trek
'tv series' is the definition.
(I've seen this before)
'open about king' is the wordplay.
I cannot quite see how this works, but
'open' could be 'start' (I've seen this before) and 'start' is present in the answer.
'about' could be 're' (regarding) and 're' is present in the answer.
'king' could be 'k' (chess abbreviation) and 'k' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for star trek that I've seen before include "Enterprise?" , "TV series" , "Science fiction series" , "Kirk, Spock et al on TV" , "Extraterrestrial journey" .)