Hypodermic equipment will be almost unnecessary (7)
I believe the answer is:
needles
'hypodermic equipment will be' is the definition.
I can't judge whether this definition defines the answer.
'almost unnecessary' is the wordplay.
'almost' means to remove the last letter (most of the word but not all of it).
'unnecessary' becomes 'needless' (similar in meaning).
'needless' with its final letter removed is 'NEEDLES'.
Can you help me to learn more?
(Other definitions for needles that I've seen before include "Sewing aids" , "Feature of Christmas trees" , "required by dressmakers?" , "Pins and - -" , "styluses" .)