Charlie too old for insurance? (8)
I believe the answer is:
coverage
'insurance?' is the definition.
(synonyms)
'charlie too old' is the wordplay.
'charlie' becomes 'c' (phonetic alphabet: alpha, bravo, charlie etc.).
'too old' becomes 'overage' (I've seen this before).
'c'+'overage'='COVERAGE'
'for' is the link.
(Other definitions for coverage that I've seen before include "publicity" , "Press reporting" , "Treatment of news" , "Extent reached by advertising" , "News reports" .)