Beacon lit, newly set on fire, finally becomes this? (10)
I believe the answer is:
noticeable
'this?' is the definition.
The definition and answer are not the same part of speech.
'beacon lit newly set on fire finally' is the wordplay.
'newly' is an anagram indicator.
'set on' is a charade indicator (letters next to each other).
'finally' suggests the final letters.
The final letter of 'fire' is 'e'.
'beacon'+'lit'='beaconlit'
'beaconlit' anagrammed gives 'noticeabl'.
'noticeabl'+'e'='NOTICEABLE'
'becomes' is the link.
(Other definitions for noticeable that I've seen before include "Capable of being detected" , "Easily seen; clear" , "Prominent" , "plain" , "impressive" .)