Scales applicable to many members (6)
I believe the answer is:
climbs
'scales' is the definition.
(I've seen this before)
'many members' is the wordplay.
'many' becomes 'c' (C is the Roman numeral for 100).
'members' becomes 'limbs' (limb is a kind of member).
'c'+'limbs'='CLIMBS'
'applicable to' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for climbs that I've seen before include "Goes up" , "Moves upwords" , "Moves upwards" , "Moves upward gradually" , "Advances" .)