Strive to be like one friend possessing sex appeal (7)
I believe the answer is:
imitate
'strive to be' is the definition.
I can't judge whether this defines the answer.
'one friend possessing sex appeal' is the wordplay.
'one' becomes 'I' (Roman numeral).
'friend' becomes 'mate' (mate is a kind of friend).
'possessing' indicates putting letters inside.
'sex appeal' becomes 'it'.
'mate' placed around 'it' is 'mitate'.
'i'+'mitate'='IMITATE'
'like' is the link.
Can you help me to learn more?
(Other definitions for imitate that I've seen before include "Mock" , "Parrot" , "Fake" , "Appear like, in behaviour or appearance" , "I tame it to copy it" .)