The way to speak – if you want to sound tongue-tied! (7)
I believe the answer is:
stutter
'you want to sound tongue-tied' is the definition.
I can't judge whether this definition defines the answer.
'the way to speak' is the wordplay.
'the way' becomes 'st'.
'to' means one lot of letters go next to another.
'speak' becomes 'utter' ('utter' can be a synonym of 'speak').
'st'+'utter'='STUTTER'
'if' is the link.
Can you help me to learn more?
(Other definitions for stutter that I've seen before include "Speech impediment" , "s...say?" , "Hesitation in speech over first consonants" , "Stumble over words" , "Speak haltingly" .)