Personalised trial arranged with a demo (6-4)
I believe the answer is:
tailor-made
'personalised' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives sometimes define each other.
'trial arranged with a demo' is the wordplay.
'arranged with' indicates anagramming the letters.
'a'+'demo'='ademo'
'trial' anagrammed with 'ademo' can make 'TAILOR-MADE'.
Can you help me to learn more?
(Other definitions for tailor-made that I've seen before include "Created for a particular purpose" , "Designed specially" .)