### Clue: In the main, might vegetable grower swap tips? (3,5)
### Answer: SEA POWER 
 ### Explanation: Definition: In the main, might
PEA SOWER ('vegetable grower') with the first letters exchanged ('swap tips'). Arachne does not call the manoeuvre a Spoonerism, with reason, since in this case the exchange works in spelling, not verbally.