Band's first organ stand (4)
I believe the answer is:
bear
'stand' is the definition.
('bear' can be a synonym of 'stand')
'band's first organ' is the wordplay.
'first' says to take the initial letters.
'organ' becomes 'ear' (ear is a kind of organ**).
The initial letter of 'bands' is 'b'.
'b'+'ear'='BEAR'
(Other definitions for bear that I've seen before include "See 13 across" , "Support; wild animal" , "Carry; large mammal" , "It could be polar or grizzly" , "Carry; brutish person" .)