DT Cryptic

[BigMac]

Can anyone explain 2 down.please?

I've snet in my completed crossword, but still don't understand how GROUNDSEL fits the clue.

Thanks in advance.

[Salty]

Clue is "plant circles set outside". Circles = ROUNDS, set = GEL, so plant = GROUNDSEL

[reddoggy]

Rounds are circles and gel is set

[BigMac]

As usual, bl**d*ng obvious when someone spells it out. Thanks a lot, Salty and reddoggy.