Flexible branch offering several investors elbow room, first of all (5)
I believe the answer is:
osier
'flexible branch' is the definition.
'osier' can be an answer for 'branch' (osier is a kind of branch). I am not sure about the 'flexible' bit.
'offering several investors elbow room first of all' is the wordplay.
'first of all' says to take the initial letters.
The first letters of 'offering several investors elbow room' is 'OSIER'.
Can you help me to learn more?
(Other definitions for osier that I've seen before include "Wetland willow" , "branch" , "Basketry willow" , "Bit of tree" , "Salix" .)