Large hotel on broadcast looks a bit '80s (3,4)
I believe the answer is:
big hair
'looks a bit '80s' is the definition.
I know nothing about this answer so I can't judge whether this works.
'large hotel on broadcast' is the wordplay.
'large' becomes 'big' (synonyms).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'on' is a charade indicator (letters next to each other).
'broadcast' becomes 'air' (to air on TV).
'big'+'h'+'air'='BIG HAIR'
Can you help me to learn more?
(Another definition for big hair that I've seen is " Outsize mop".)