Visitor to arrive on time (5)
I believe the answer is:
comet
'visitor' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'arrive on time' is the wordplay.
'arrive' becomes 'come' (synonyms).
'on' is a charade indicator (letters next to each other).
'time' becomes 't' (abbreviation).
'come'+'t'='COMET'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for comet that I've seen before include "Frozen body" , "Omen supposedly" , "one of Santa's reindeer" , "body found in space" , "Heavenly body with a fiery tail" .)