Family members run into trouble heading for station (8)
I believe the answer is:
brothers
'family members' is the definition.
(brother is a type of family member)
'run into trouble heading for station' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'into' means one lot of letters goes inside another.
'trouble' becomes 'bother' (synonyms).
'heading for' suggests taking the first letters.
The first letter of 'station' is 's'.
'r' put into 'bother' is 'brother'.
'brother'+'s'='BROTHERS'
(Other definitions for brothers that I've seen before include "See 5" , "comrades" , "Fraternal relations" , "Brethren" , "(Roman Catholic) monks" .)