Secured Asian holiday with her newsroom boss ... (8)
I believe the answer is:
tethered
'secured' is the definition.
'asian holiday with her newsroom boss' is the wordplay.
'asian holiday' becomes 'tet' (I've seen this in another clue).
'with' is a charade indicator (letters next to each other).
'newsroom boss' becomes 'ed' (I can't justify this - if you can you should give a lot more credence to this answer).
'tet'+'her'+'ed'='TETHERED'
Can you help me to learn more?
(Other definitions for tethered that I've seen before include "Of animal, with rope fastened to prevent straying" , "Fastened with rope or chain, like animal" , "Tied to something with a rope" , "Confined in range by tied rope" , "Not free" .)