Love to take up slack, is it a flower? (6)

I believe the answer is:

oxalis

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'a flower?' is the definition.
(thesaurus)

'love to take up slack is' is the wordplay.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'to take up' shows that the letters should be reversed in order (I've seen 'taken up' mean this).
'slack' becomes 'lax' (synonyms).
'lax' backwards is 'xal'.
'o'+'xal'+'is'='OXALIS'

'it' is the link.
This may not be right. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for oxalis that I've seen before include "Wood-sorrel genus" , "Genus including wood sorrels" , "One responsible for technical matters for a play" , "Wood sorrel or related plant - Lao six (anag)" .)

I've seen this clue in The Hindu.

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