The most common and most likely answer to this crossword clue is the 3 plus 2 letter word DUE TO
I've seen this crossword clue in The Guardian
D
U
E
T
O
More clues leading to the result DUE TO
- On account of two playing together love ensues
- Because of odour, eat cod only now and then
- Couple have nothing as a result of …
- As result of song for couple, love follows
- …because of a couple finding love
- Prompted by couple singing, orchestra opens
- ... because of love song at first
- Because of couple’s performance, a little overcrowded
- Because of a song only...
- Because of two musicians, love
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The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.