Send flower to support tense husband (6)
I believe the answer is:
thrill
'send' is the definition.
(I've seen this in another clue)
'flower to support tense husband' is the wordplay.
'flower' becomes 'rill' (I can't explain this - if you can you should give a lot more credence to this answer).
'to support' means one lot of letters go next to another (in a down clue, some letters hold up others).
'tense' becomes 't' (grammatical abbreviation).
'husband' becomes 'h' (abbreviation).
't'+'h'='th'
'rill' after 'th' is 'THRILL'.
Can you help me to learn more?
(Other definitions for thrill that I've seen before include "Sudden rush of pleasure" , "D. W. _, pioneer US film director; rigs fifth (anag.)" , "bring a tingle of excitement" , "Excited sensation" , "Sudden sensation of excitement" .)