Just be all over the shop with tequila (9)
I believe the answer is:
equitable
'just' is the definition.
(I know that just can be written as equitable)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for equitable that I've seen before include "Even-handed" , "Fair, impartial" , "Fair to all parties" .)