Small tool spotted by worker (7)
I believe the answer is:
handsaw
'small tool' is the definition.
'handsaw' can be an answer for 'tool' (I've seen this before). I'm not sure about the 'small' bit.
'spotted by worker' is the wordplay.
'spotted' becomes 'saw' (spot can mean to see).
'by' means one lot of letters go next to another.
'worker' becomes 'hand' (hand is a kind of worker).
'saw' after 'hand' is 'HANDSAW'.
Can you help me to learn more?
(Other definitions for handsaw that I've seen before include "Manual cutter" , "cutting tool" , "Manual tool" , "wood tool" .)