Fish doctor's opening strange piece of kit (4,4)
I believe the answer is:
bass drum
'piece of kit' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'fish doctor's opening strange' is the wordplay.
'fish' becomes 'bass' (bass is a kind of fish).
'opening' says to take the initial letters.
'strange' becomes 'rum' (synonyms).
The initial letter of 'doctors' is 'd'.
'bass'+'d'+'rum'='BASS DRUM'
Can you help me to learn more?
(Other definitions for bass drum that I've seen before include "Big percussion instrument" , "Booming percussion instrument" , "Large percussion instrument" , "Deep instrument" , "musical instrument" .)