18/3 across
Stop
druggie
being
ultimate
beneficiary
of
software
(3,4)
Stop druggie being ultimate beneficiary of software (3,4)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is ultimate beneficiary of software, which gives you END USER. Stop gets you END, and druggie gives you USER (someone who takes drugs), so just put the two together.