off-and-on

[Ripper]

Can anyone help me with these?
Each clue has an extra word that needs removing before solving

After three miles I approached a sexy woman (5)
Happy to drink tonic water following a party (8)
Jock's daughter to stop electronic writing (4)
Thailand forester cut down outstanding aged conifers (8)

Thanks in advance

[bellabee]

the last one is the easiest i think - taxaceae [ t = thailand (drop forester) cut down = ax / outstanding = ace / aged = ae

[Ripper]

Thank you bellabee
You're amazing!

[boondoggle]

An old expression for walking three miles = hour + i = houri
The obsolete word = approached

The other two clues look tough. Good luck.

[squarebear]

If taxaceae is the easiest, I think I'll pass.