Is wearing a clerical garment what could help with overseeing? (9)
I believe the answer is:
periscope
'could help with overseeing?' is the definition.
I can't judge whether this definition defines the answer.
'is wearing a clerical garment' is the wordplay.
'wearing' means one lot of letters goes inside another.
'a' becomes 'per' (eg 'one a day' means 'one per day').
'clerical garment' becomes 'cope' (type of religious cloak. I am not sure about the 'clerical' bit.).
'per'+'cope'='percope'
'is' placed into 'percope' is 'PERISCOPE'.
'what' acts as a link.
Can you help me to learn more?
(Other definitions for periscope that I've seen before include "Submarine's viewing tube" , "Submarine's eye?" , "tube with mirrors" , "Viewing instrument in a submarine" , "Optical instrument" .)