Will call again at about five, it is arranged (7)
I believe the answer is:
revisit
'will call again' is the definition.
I can't tell whether this definition defines the answer.
'about five it is arranged' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'five' becomes 'V' (Roman numeral).
'it is' becomes 'itis'.
'arranged' is an anagram indicator (letters rearranged).
'itis' anagrammed gives 'isit'.
're'+'v'+'isit'='REVISIT'
'at' is the link.
Can you help me to learn more?
(Other definitions for revisit that I've seen before include "Consider again" , "Go back to (place)" , "Pay further call" , "repeated call?" , "Come back" .)