Humanity needs time to cope with it (6)
I believe the answer is:
manage
'cope with it' is the definition.
'manage' can be an answer for 'cope' (both can mean to get by). I am not sure about the 'with it' bit.
'humanity needs time' is the wordplay.
'humanity' becomes 'man' (synonyms).
'needs' means one lot of letters go next to another.
'time' becomes 'age' (an age is a period of time).
'man'+'age'='MANAGE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for manage that I've seen before include "Handle and control the business" , "Run; cope" , "get on" , "Run, be in charge of" , "Run (eg, company)" .)