Guys with no time for relations (5)
I believe the answer is:
aunts
'relations' is the definition.
(aunt is a kind of relation)
'guys with no time' is the wordplay.
'guys' becomes 'taunts' (guy can mean to tease or taunt).
'with no' suggests deleting specific letters.
'time' becomes 't' (abbreviation).
'taunts' with 't' removed is 'AUNTS'.
'for' acts as a link.
(Other definitions for aunts that I've seen before include "relatively speaking" , "Relatives get a peculiar US tan" , "Relatives get an odd US tan" , "Parents' sisters" , "Relatives get bad US tan" .)