It's rainy when we're on the tee (3)
I believe the answer is:
wet
'it's rainy' is the definition.
(similar in meaning)
'when we're on the tee' is the wordplay.
'when' becomes 'e' (I've seen this in other clues).
'we're' becomes 'w' (this could be a standard abbreviation I've not previously seen).
'on' says to put letters next to each other.
'the tee' becomes 't'.
'e' put after 'w' is 'we'.
'we'+'t'='WET'
Can you help me to learn more?
(Other definitions for wet that I've seen before include "Irresolute" , "Damp" , "Moisture; feeble (colloq.)" , "Rainy; feeble person" , "Soaked with water" .)