French very upset following popular addition to magazine? (6)
I believe the answer is:
insert
'addition to magazine?' is the definition.
I can't judge whether this definition defines the answer.
'french very upset following popular' is the wordplay.
'french very' becomes 'tres' ('very' in French).
'upset' shows that the letters should be reversed in order.
'following' says to put letters next to each other.
'popular' becomes 'in' (something that's 'in' is fashionable).
'tres' written backwards gives 'sert'.
'sert' after 'in' is 'INSERT'.
Can you help me to learn more?
(Other definitions for insert that I've seen before include "Introduce, put in" , "Add in" , "Put thing in between others" , "Place within, pages of a publication say" , "Place in between other things" .)