Shed tears, seeing little parking (4)
I believe the answer is:
weep
'shed tears' is the definition.
(thesaurus)
'little parking' is the wordplay.
'little' becomes 'wee' ('wee' can be similar in meaning to 'little').
'parking' becomes 'p'.
'wee'+'p'='WEEP'
'seeing' is the link.
(Other definitions for weep that I've seen before include "Pee-pee" , "Seep slowly out" , "Cry, shed tears" , "Sob - ooze" , "lament" .)