Joiner hawked bottom of wardrobe on phone — smooth! (9,4)

I believe the answer is:

soldering iron

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'joiner hawked bottom' is the definition.
I can't tell whether this defines the answer.

'of wardrobe on phone smooth' is the wordplay.
'of wardrobe' becomes 'solde' (I can't explain this - if you can you should believe this answer much more).
'on' means one lot of letters go next to another.
'phone' becomes 'ring' (synonyms).
'smooth' becomes 'iron' (I've seen this before).
'solde'+'ring'+'iron'='SOLDERING-IRON'

Can you help me to learn more?

(Other definitions for soldering iron that I've seen before include "Tool for making electrical joints" , "Circuit builder's tool" .)

I've seen this clue in The Times.

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