Drop in and cry (4)
I believe the answer is:
call
I believe this clue is a double definition.
'drop in' is the first definition.
(thesaurus)
'cry' is the second definition.
('call' can be a synonym of 'cry')
'and' is the link.
(Other definitions for call that I've seen before include "Pay a visit" , "Entitle" , "Phone - demand" , "Name; visit" , "Summon - visit" .)