Sound alternative to sail (3)
I believe the answer is:
oar
'sail' 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?
'sound alternative' is the wordplay.
'sound' indicates a 'sounds like' (homophone) clue.
'alternative' becomes 'or'.
'or' sounds like 'OAR'.
'to' is the link.
Can you help me to learn more?
(Other definitions for oar that I've seen before include "Rowing blade" , "Rower's implement" , "Use it to move a boat" , "I'm involved in row" , "Rowing implement" .)