Line up a whole series (5)
I believe the answer is:
range
This could be a double definition.
'line up' is the first definition.
(thesaurus)
'a whole series' is the second definition.
'range' can be an answer for 'series' (I have seen 'Series of mountains' mean 'range' so perhaps 'series' could also mean 'range'). I am unsure of the 'a whole' bit.
Can you help me to learn more?
(Other definitions for range that I've seen before include "where cattle may graze" , "Cooking appliance" , "Amplitude" , "Tract of grassy land for livestock" , "Grassland - variety" .)