Everybody needs some special line (3)
I believe the answer is:
all
'everybody' is the definition.
(all people)
'some special line' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ALL' is hidden in the letters of 'special line'.
'needs' is the link.
(Other definitions for all that I've seen before include "The lot, everyone" , "Long avenue or garden path" , "and 16 Across and 23 Across: Even so" , "Everything or everyone" , "nothing more" .)