Will call for, you gather (7)
I believe the answer is:
collect
This might be a double definition.
'will call' is the first definition.
'collect' can be an answer for 'call' (collect call is a kind of call). I am unsure of the 'will' bit.
'you gather' is the second definition.
'collect' can be an answer for 'gather' (I've seen this before). I'm unsure of the 'you' bit.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for collect that I've seen before include "How people in America may be called" , "Gather together, for a short prayer perhaps" , "Assemble or bring together" , "Accumulate" , "Raise" .)